The issue for me was that a guy doesn't nesc have to spend loads of money. In fact my main criteria was to make this thing (MKII) spending as little money as possible.
I asked myself, 'Is it possible to build a playable, reasonable looking instrument using cheap materials, with no carpentry skills at all, zero knowledge of instrument constructing, and few tools?'
Yes!!
For instance, the neck and pegbox for this bass uses the cheapest softwood, costing me about £4 = $5(?). OK, I ploughed through the DIY centre's stock of kiln dried timber to find a piece that was a straight and as knot free as possible (but MKII does have knots in the neck!).
With that, I then wondered why I would need to spend big-ish bucks on Maple, etc, when softworks very well indeed.
I should say that I also made MKI. This was a 'stick bass', EUB style instrument. The thru-neck / body is made of the same softwood as MKII. The fingerboard is also softwood in this case, that I used my very first attempt at veneering to lay-on a slice of Wenge. I slotted a 20mm piece of steel into the neck as a crude truss bar. It works ... and works well with loads of brightness and plenty of sustain. Brill! Though it's more difficult to play than MKII, it sounds better.
This is a journey of experience for me. As a retired man I have time to experiment, read, research and learn. Im actually interested in experimental bass instruments so don't, to be honest, really want to make a DB: if I want one, I'll buy one.
At some point I hope to make a photo diary for MKII.
Best.
John