This one? http://www.grouseguitars.com.au/sold/gretschbroadkasterbass.htm
TK300 is a great looking bass- and it also is well made and sounds great.
I have to smile at that. The TK300 is one of the oddest looking ducks out there. I've played a couple, and I found the pickup nasty, unpleasant and harsh. All a matter of taste, of course.
Those Hagstroms need a pickup transplant! I reckon the pickups that came stock are fairly generic guitar pickups.