My bucket list would have to start with a bigger house that could hold more basses comfortably.
Without that, I got almost nothing.
I have two basses that I'd like to get (back).
1. A 4 string, koa bass that I co-built with Santa Barbara luthier John Hawk (since retired).
2. My red quilted maple Tobias (Hollywood shop) 5 string.
I'd find room for those.
In the unlikely event that I get a bigger house:
Kubicki Ex Factor
Alembic 5 string with Series electronics
ACG 5 string
Jerzy Drozd 5 string with 34" scale