Congrats on the Custom build, keep in mind most custom builds are passion & challenge. Most of time even with intentions to "save" funds, will end up consuming more than the off-the-shelf platforms.
I'd be interested where you take this custom build... I've had an interest in similar using alternate platforms and transplanting DJI gear.
A similar discussion in 2019 may help... not an exact route but similar.
I am seeing different sources saying different things and it seems DJI introduced Lightbridge 2 during Inspire 1 PRO's run. Anyone know how I can tell which one I am using? And.. Can I use my remote controller ground unit) and simply buy an air unit for my s1000 then use the same controller?
The XT & Z30 gimbal mounts will mount to any rail of proper dimensions. But the electronic interface to my knowledge is A3 or A3 Pro with LB2 only. It's more a FW issue and if the hardware will be acknowledged.
The A3 / LB2 Kit that duplicates the M600Pro has slightly different FW... accepting all payloads except for the XT2 that the M600Pro accepts. Not limited by physical connectivity, just FW allowance.
For a contrast of viewpoint... I'll deviate a bit from your original question.
I have a "in project" S1000, sitting on shelf collecting dust 50-60% completed.
I've obtained different gimbal mounts and changed battery mount location to mid-mount.
It's a project of challenge & entertainment... and a Winter busy time project.
Little custom work grinding and making a few parts from carbon plates and tubes.
is spot on with his comments, the S900 & S1000 were early technologies that had their Pros & Cons. The S900 was more popular and stable; the larger Octal S1000 was targeted at the big payload platform. It did perform, but it also had multiple issues.
A S1000 stock, in comparison to current technology I don't think I'd take that direction when a M600Pro is ready made and so much ahead of the S1000 A2 or N electronics. A Used M600Pro can be found for about the same as I've seen used S1000 Kits.
That said, I'd also add... You're into custom builds that's a different consideration and may exceed a M600Pro; the S1000 does have a path that makes it a heavy lifter, much more than a M600Pro and greatly improved in stability & reliability to the stock S1000.
Main change I'd suggest is moving to A3 Pro; the S1000 PDU and Main boards were very robust & reliable. The Main Airframe was also substantial and sturdy... although additional base plates were available too. Using the A3 Pro and Lightbridge 2 electronics essentially duplicates the M600Pro Electronics and acceptable payloads: X5, X5R, XT, or a multitude of 3rd party on RoninMX or Gremsy Gimbals. The only payload lacking from M600Pro is the XT2 due to FW restrictions between M600Pro & A3 /LB2 kit.
You're taking an alternate Motor route, I'm interested in your direction. I took a different route; removed the stock Motors, ESC modules and 15" plastic "highly flexible" props with DJI's own Improved hardware: E1200 Tuned Propulsion System (E1200 TSP) that includes new motors (lower RPM, higher torque), greatly improved ESC's and 17" Carbon Props similar to M600Pro 21" Carbon Props. This will also involve mods to replace & extend Motor Arms and Landing Gear with new carbon tubes.
The S1000 can be configured to run Tandem Packs using smart LiPo packs at a much lower cost than TB48S units with equal or greater run time. That "may" be a justified "Pro" if used in various arenas... charging of LiPo's & Cost.
Got a Little side tracked... but if the S1000 appeals, and you're into playing with a Custom route consider the A3Pro / LB2. The cost of the LB2 Receiver if not purchased with LB2 Kit isn't great for a custom build.
Added just for info if interested:
This is the URL to the DJI E1200 TPS, they are very hard to find now.
I located 3 sets (Globally), 2 new & 1 Used in case I decided to build a 2nd S1000.
Designed for multirotor copters weighing 7-15 kg, the E1200 Pro can be adapted on platforms with 25mm-diameter arm tubes, such as the S900. Extensive optimization provides efficiency, safety, and endurance under extreme conditions.
Helped adapt this wire mount for M600Pro & S1000 Rails... looks like Vendor name has changed since I was involved. This can take RoninMX / Gremsy mounts and the M600Pro XT & Z30 gimbal mounts.
Find many great new & used options and get the best deals for Upgraded wire damper mount for DJI M600, ZAX ref gopro at the best online prices at eBay! Free shipping for many products!