Rob,
Congrats on the 66 of 68 Coupon Type 1 set (and the 1/4 run on 2nd set)! Simply amazing. What is your time horizon for all this hard work? 20 years?? I have never known anyone to finish the type 1 set. I know of one or two folks that have made a meaningful impact on the set and I have talked with one board member about a known individual that claims to have a complete set, but it has not been confirmed by anyone else.
I went after the set for about 10 or so years, and got to around 55 cards, and then fizzled out. I kept some, auctioned some, sold a few to hobby friends. (We even did some deals, best I recall)
You may very well own 5-10% of the known Coupon Type 1 cards! LOL