Britannica 1987 Gold Proof sets

Trime

What do these sets sell for (in original boxes)?

Stork

This company sells them:
Chard
The shipping can be pricey, and they may hold your check for a long time, or not. I ordered direct from them once while I lived overseas and they held my US check for 30 days. I bought from them off ebay recently and I got the coins before the check cleared. It was a different mailing address so I don't know if they recognized me as a repeat customer or not. I consider them a reliable company. Their ebay feedback mostly revolves around their occasionaly glacial shipping speed, that they don't read email much (use the phone) and sometimes they use proofs to depict an unc for sale. They state all these things clearly on their listings, but their feedback has taken a few dings.

I've seen the sets on ebay rarely, but never saw a bargain.