Tacoma Thunderchief ABGs can come with no electronics, in both four-and five-string models. Some people prefer them that way, so they can add their own pickup (like a K&K) later.
I got a Fishman pickup/preamp on mine, and use it occasionally. It doesn't rattle at all. It sounds good, but can feedback when plugged in. A phase switch and notch control work pretty well in controlling this, as long as I don't run around with the bass while playing.
Getting a Tacoma w/o any pickup drops the price from around $1000-1100 new to around $800 new. They show up on ebay for lots less used sometimes, too.
Oddly enough, Musicians' Buy (musiciansbuy.com) seems to be selling the no-electronics five-string version ($769 w/free shipping) for less than the four-string one ($825).

I got mine from them.
Here is the link to their Tacoma page -- scroll down to the bottom two models, which I'm pretty sure are the ones with no electronics -- you could call them to make sure.
I agree about the unique voice of a good unplugged ABG. Not terribly useful for performing, but my Tacoma has one of the sweetest tones I've ever heard, and it's my second-favorite bass for practicing after my Lakland. I spend a lot of time just fooling around on it, and still enjoy the heck out of its fabulous tone.