I forwarded a link to your Santana to a cycling friend of mine here in Santa Cruz, Ca. If he'd been interested, I'd have driven up to Portland with him to buy your tandem. It was a great spec, at a reasonable price. Congrats on the quick sale.
FWIW, we just bought a pristine 95 Santana Sovereign (our first tandem - in Large) off the SF CL last week, with XTR, Edco, King headset, Avid Ultimate V-brakes, Sachs brifters, plus a bunch of other premium bits. The bike was local - less than ten miles away, and surprisingly, it was listed a few weeks in a row. The other hot buyer was out of town and would've paid a premium to have it shipped. I feel very lucky to have been able to connect on this tandem.
Bottom line, I agree, in some markets, it's tough to find a decent used tandem.