Heres one I did recently the before and after ..like others have said its a ton of work..I started wet sanding from 220 320 400 600 800 and 1000 always keeping the paper damp..then I coated with plastic renew( 3 coats) I had an old buffing wheel from one of those headlight kits to take the haze out and ran that a couple times..then 3 more coats of renew ..YMMV