Yeah I'm happy to contribute a jump or two. Don't have the time to do any detailing or whatever.
If the stuff is too spastic you can ignore me
Also just an idea. Maybe have it so each jump is split between demoman and soldier. So that there's some class filter exclusion thing (e.g. a teleport) which forces either class to take a different route for each jump. That way it represents both soldier/demo rather than just 1 or two separate courses. You'd obviously need to sort out some obvious visual/detailing method to make this extremely obvious.