There are quite a few things I'd like to have -- e.g. Roscoe Beck 5, Chowny CHB-1 in sapphire burst, another Shuker -- but only two/three that I'm really itching to get my hands on:
1. Wal 5-string fretted, ideally Mk3 but a Mk2 would be just as good;
2. YOB ('65) Jazz Bass, from April that year if poss, ideally in candy-apple red with matching headstock.
3. Failing 2 above, a good replica (e.g. light relic Limelight) would be fine.