That's a pretty easy model to make, i could probably hammer one out in about a week.
Not that it would take an entire week of working on it, but just a couple of hours through out the entire week cause of limited time thought out the day.
Probably couldn't do the jsbsim dynamic model because i don't know what that is.
I would want to see a good luxury off road vehicle like this Concept Range Rover:
It would be pretty cool to ride around in the wilderness with style.
I've d actually been working on this vehicle for awhile on my spare time, its looking pretty good.