Thanks for the comments for all!
TechyJoe, did you visit my webpage? There's also more detailed pictures about the driver.
My engineering methods are "learning by doing" and "think, draw, do, test and do it again".
I did something and then I did it in other way. Basically first I had to solve the mystery of progressive and unwanted deg-/regressive suspension. Then I noticed that if the angle of the shock and the arm decreases, it's regressive and if the angle grows, it's progressive -and from this base I started to plan the track suspension. I studied 1:1 track suspensions and tried to figure out, why the things are like they are. Metal work came with the supplies I had. I did the metal work with band saw, small angle grinder and files.
I used Sony Vegas to edit this video, but this kind of editing is easy to do with any edit software, even with MS moviemaker. Althought not all editing softwares can't do good slow motion.
I think the the New Bright Ski-Doo is very good platform for modifications. It's bigger and there's a lot more space inside. It will be also in a way "lighter" compeared to the size of the skis and track - if you can spot what I mean.