I don't think your a derp if it has any consolation, I kinda figured you were new. The water will layout nice and flat, unless it goes on dry and I find it great to work with. Other then having to spray it to see the end color it's a great product! I have only worked with gelcoat once, and I hated it lol!
From the picture it looks like you can spray like a boss, so I would say you transitioned quite well!
I would go with a solvent base, and maybe an acrylic clear not to sure. I would be more worried about the clear building to much, and would do my best to get 1 coat coverage with the base to give me the most room to work with. I would try it out, but I don't feel like tearing my fishing gear apart to paint it.
Keep up the good work!