Thanks guys.
Big M, I posted how I did the scales in my first thread about this bait (see reply #8). It took about 20-30 minutes for each side. I also tried using this scaling technique on a cedar bait, and it's a bit more difficult because you have to use a hot wood-burner. It took longer and it didn't turn out as good as I hoped, but it's definitely doable. I prefer working with PVC though; it's what I feel most comfortable using.
For those of you looking for a PVC supplier, try vintagewoodworks.com/. I just got my first order from them the other day, and I'm very satisfied. For one thing, I can get wider boards than they had at Menards, and also they have several different thicknesses of PVC. Make sure you get the trim board, not the decking board. Their decking board has a woodgrain on one side, and that will substantially decrease the useable thickness of the board.
Another nice thing about the PVC they sell is it doesn't have a plastic coating on the outside. This is especially good when you're making baits in two halves instead of from a single thick blank. You also don't lose any thickness from sanding off the film, and it's just much easier to work with. I'll definitely be ordering from them again.