I like where you're going with it so far. I'll be doing one too - anything you learned worth noting?
I wish I left it out in the sun a bit longer but the weather hasn't been so good lately. Since putting it in the rig there has been little bit of paint smell left behind. If I were to do it again I would try using the Raptor liner on Amazon versus the truck bed liner from Home Depot. Potentially the roll on version but spray would be good too since I have a compressor.
Or you can always get spray adhesive and put carpet on.