I've wanted one of these since they came out in 2010 (is that the right year?). I pulled the trigger a couple weeks ago when I found one in excellent condition on a site I've never used before (buya marketplace, which I see as a direct competition with EvilBay). When it arrived, the preamp system was not working. A pawn shop from OK was the seller through buya, so I called them and they were very good, giving me the option of a simple return/refund OR take it to a local guitar shop & see what they could do. 10 days later, a tech called, had it working again for $40 - the 9V battery cable was replaced and they cleaned everything out (there was some corrosion, which concerns me), sprayed the pots, etc...and the seller agreed to refund $100 for the trouble!
Paid $500 + $50 S & H, felt it was a fair price, but I see some listings asking as high as $1400, others were $650, $850, $1150 on another, the latter now labeled as Sold, and it looks like they got asking price! Anybody have an idea why pricing is so variable, and is this instrument good enough to be called "Rare", as some ads for it suggest, put another way, is it a (future) collectible? How many were made?
I digressed there...my real ? was did you do it (replace the bridge/preamp), how did it work out, and what was the total cost, if you don't mind? I want to start the process of investigating replacement if needed/if it fails again...and may just follow your lead!