Sorry, but no two Wishbasses are alike. Proper 'research' would have told you that.
Putting $500 of extras into your first 'custom' bass with any builder, particularly when examples of their work sell for $300 on eBay is a little different IMHO.
In regard to that 'research', there are lots of posts here talking about not going too far off the beaten track with a Wishbass. If you'd posted here with your thoughts then I'm sure we'd have set you expectations a little lower than they obviously are/were. I realise that you feel that you shouldn't have to do that, but that's what I mean in not doing your 'research', however unfair that sounds. For what it's worth: shame on you!
Looking at your pictures, it looks he has built you an instrument and it looks far and removed from a 'half baked' example of his product, although the very nature of a Wishbass is that when compared to most things they are 'half baked'!
If it doesn't play when you get it then you've got a real issue, which I'm sure, prior to your rants would be resolved. Actually I'm sure they still will be resolved.
You may think it is terrible business, but IMHO it is wrong to get on a very public forum to abuse and liable somebody. There are plenty of ways to make your point without calling someone abusive names and questioning their honesty, ethics and integrity, particularly when it doesn't seem that you've got too much of a case - however irking it is to you to read this. The truss rod is how he does truss rods (research might have told you that!), the mis-aligned bridge, while it might not look nice is on par with some of the other construction I've seen, non of which affect the playability of the instrument.
You're experience is also very different than most other folks here.
It's understandable that you've currently got the jitters and buyers remorse but I'd say hold on (and hold back) for now. See what the mailman brings, take a deep breath and then go from there.