It's time to get back to work in the real world. Here is a Mosrite body, almost completely recovered from its brush with water-based polyurethane. Stick with oil-based, water-based is junk.
This one went through a long and torturous build process over almost two years. All I can say is don't believe the "advice" you find on talk_ass. However, in the end, it turned out to be a pretty nice instrument.
This was my third go at a 325 bass. The first one was unbalanced with this long neck, and the second suffered a router mishap. Eventually, I salvaged both of those, but first I took all the good parts and did this. Fender-type alder body with 3-tone sunburst, single binding. Surface-mounted pickups, active electronics. Finished entirely in polyurethane.