Parts are easy to find, prices on used oem parts are pretty cheap, things to look for
Make sure Aarms are good and tight
Swingarm and carrier bearings are good and tight
Good compression in both cylinders
Starts easy
Type of pipes
Jetted properly
Nothing is bent up
There's a few things anyhow
Right on, your probably ok with the pipe but hard to say for sure, you should post some good pics of the pipe in question. Also when you clean your carbs check and see what your jetting is
Compression sounds about right, I hate twist throttles also lol, depends on where the dent is in the pipe and how bad of a dent it is... Welcome to HQ, hope your ready to spend some $$$ and haul ass