Yah, I was pretty sure Jet-Pac did those, and when I saw him beta testing for Just Flight I made the assumption (my fault) that he was going to have to do it for them as well. Problem is, the situation is kind of tenuous. Should Jan ever become unavailable for whatever reason (school, etc) , it seems right now, any hopes of third party aircraft development would come to a screeching halt, or at the very least be seriously crippled.
It should not be this hard, it and if it has to be, there should be robust tools to mitigate the difficulty!
As I said, Just Flight did it on their own and their two independent teams figured it out themselves. I only gave a few explanations along the way and as long as I have the time to do so I'll help any other developer. Also kryzk seems to have created quite a number of aircraft and I didn't set up a single landing gear for him. So it is not impossible. Not easy, but doable, even without tools.