Is it possible to implement realistic headlight beam patterns like in this mod? https://www.beamng.com/threads/realistic-headlight-patterns.84947/
You may forget 1 more engine option, namely the 4.2 V6 engine for the cheapest variant if you can take the engine base from the bruckell bastion so it's like the biggest V6 from bruckell
The mod is already (mostly) completed, and is supposed to release soon. There isn’t any room for new engine options.
That is up to the creator, and this has been stated in the op that it isn't fully decided yet. I don't think it'll be out on the repo, that's up to Finn to answer.