I hesitate to ever wade into a 'what's it worth?' conversation about a company I work for, but this is a wild one. So, with that stipulation... I think the person who did the work was very clean and intentional. I think whoever buys this bass should want this bass as-is. I've been in the game for a long time and I've seen some things ::1000 yard stare:: I wouldn't call this mangled, but it's absolutely it's own thing!
For the price they're asking, you might as well order a new 630 built to your taste. Getting this bass back to something resembling its stock form is going to cost an arm and a leg and it'll never quite get there. A plain mahogany body, maple neck and rosewood board is pretty close to the least expensive possible combo.
I'll say this, the 630 surprises the heck out of me every time I pick one up. It seems like such a weird little bass and then you pick it up and it all makes sense. With the right strings the B on the 30" is awesome and the form factor is really comfy. Could definitely see one of these in my future!