: I built an artic tern about 6 years ago. It has a few scratches, ok
: alot & I left it out in the sun too much. I would love to
: bring it back to it's original beauty! Suggestions

Chemically stripping the varnish will get it off fairly easily, specially if it's old, and won't hurt the epoxy. Then a light sanding and you can revarnish.

Sanding the varnish without hitting the glass can be tricky.

Bill H.