First, clean it up so all future dirt is yours. Make sure it's completely safe to go down the road then get out and use it! You'll fine your own wants/needs based on use. Save all the work for the time/weather you can't go camping. Life is short and summer is even shorter. YMMV
BTW: Welcome to FiberglassRV, we're glad you found us.... have any pictures to share?
Ten Forward - 2014 Escape 5.0 TA
Double Yolk - 1988 16' Scamp Deluxe