I would post pictures of areas you might think are problematic.
It's a simple design, I have a maxed out III that I bought from John Evanthes, the late moderator of this forum.
Basically, it's got a belt that you should replace, a power button that should still work and a motor that should
still turn.
Call VPI, they are dedicated to helping and I have had good luck contacting them over the years.
Download a manual from
vpiindustries.com
Check out threads at
vpiforum.com
PM me if you have questions.
Have fun, way way simpler than suspended tables like Linn!
Paul