If it wasn't Unity I'd be happy to volunteer programming for getting something like this going. I used to play a lot of Ogre Battle 64 and still pick it up on Project64 and a Nintendo 64-to-USB controller every few years!
Well you would be writing the engine, so I don’t care what program you use. But I would want it to fit a vision we both have. I have had too many people start a project and then bail. If you are really interested reply or we can move this to discord if you want: