It depends. How much is your time worth. I have to do so much a day, or why work for myself. $100 an hour, then there's market minimums on these. Garage guys are notorious for upsetting the market, pricing way to low. There has to be a minimum on some things, especially time consuming projects. A boat, just the exterior from the lower body line to the top outside edge of the top of the hull, back panel, no interior. It's gonna take my whole day. How much is your day worth? I'll easily take $800 - $1000. The client isn't doing me any favors supplying the material. I can't make money there, which makes my labor the only profit center for that day. Don't wreck things by being too cheap. We are in it to win, make a nickle, eat good and enjoy life. Good luck. Your first one was practice and you learned a lot. Charge more next time.