a thunderbird is probably the wrong way to go, they are an ergonomic nightmare, the have terrible neck dive due to the unconventional shape big head stock and no upper horn. also the bridges are notoriously crappy on those things, also don't knock bolt-ons until you've tried em, you'll get a lot more punch out of them, and based on what some people have already said I would consider an Ibanez, perhaps a BTB. something like this
and I believe they are neck thru.
http://www.talkbass.com/forum/f126/ibanez-btb-1000-a-875521/
Just a note, not my bass or sale just picked it for reference
and I believe they are neck thru.
http://www.talkbass.com/forum/f126/ibanez-btb-1000-a-875521/
Just a note, not my bass or sale just picked it for reference