Hey Greenboy!
You helped me I'm gonna help you! In case you hadn't come across it in your reading or looking at other basses, some repair people will coat a fretboard with Crazy Glue! I was very dubious but it's been done now for about 25 years and it looks crystal clear and is very hard when done properly.
I've owned a Pedulla Hexabuzz for 10+ years now and my finish on my board shows only the tiniest of string ridge marks under the low B and E and that may only be because some mook slapped on it a bit. Pedulla's coating (diamond coat, I think they call it...) is VERY hard and last a heavy gigging player about 5 years on average. Somebody like Bumpcity who glgs a LOT, doing funky thangs may go through in about 3 years. I believe it's a Polyurethane. Call Pedulla, they're very nice folks.
Gary Willis' site www.garywillis.com may have a section about how to coat your board. I think he did when the site was new. He talks about how he did several of his own basses in the past with boat epoxy if I remember right. He talks about it at seminars...
I'm sure he'd give you a detailed answer in his contact email.
Hope all that helps. My limited experience working on boats is that it would be easier to get a transparent finish with Poly than epoxies but there are so many out there...
Paint shops (real ones-Ma and Pa since 1948 or Sherwin Williams stores are good sources for info on their products. I had them help me select a spray finish for a banjo I built years ago.
By the way, the singing, zingy sound is so addictive!!!
Jim