I've put together a Pitbull ESB-4 Semi Hollow Bass kit.
I documented the whole build in this video:
https://www.youtube.com/watch?v=6gipqKxhnqA

There is also a sound demo at the end.

Some Details about the build:
Clear Coat: Nitro Cellulose Lacquer Spray Cans (I've used the ones from Northwest Guitars, but any brand will probably do)
Tru-Oil finish on the neck
Wood Dye: Keda Wood Dye Kit for the orange / dartfords Blue Metal Complex Wood Dye Powder

Here are some pictures of the finished bass:











Tru Oil finish:



It took me a while to edit the video. It seems these kits got discontinued. Or maybe there's just a shortage and they'll be back soon?
It's a really cool bass though.