: 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

assuming no damage to the epoxy from uv or deep scratches into the glass, simply sand with 120 grit and then 220 and then varnish. I do this fairly often on used boats and I can always see problem areas of damage that may not be fully recoverable prior to refinishing.

If you do have problem with epoxy or glass please post a follow up to get more help.

your boat is going to look great
Robert, visionary