John, nice pictures and ride! I also have Wise Guy seats, but have decided to get them covered with my own supplier leather. One of the reasons I decided to get them covered locally, was to have the upholster make sure that he could do something or provide more leather reinforcement in the area right by the brackets that hold the soft top.
I had ordered only one seat to see if I could get the clearance I needed in order to get my big body in the car....with the seats and the Budnik steering wheel (which is what yours looks like too) there was enough clearance for me to decide that I could do the car and drive it....hence the project proceeding...I have since ordered the second seat, but Dick at Wise Guys had a lsight change going through on the design so he was waiting for a new order of them to come in, but he tells me that his supplier's laser cutter broke, hence there is a delay. This was as of last Monday, April 11th, now he is telling me early middle of next week.
Stan, Wise Guys Seating, PO Box 211, Elkhart Indiana 46515 866-494-7348 (toll free) 574-848-1309 He has a catalog, but I don't see the seat for the C1 in it, rather tell him on the phone what you want (in my case '60 vette) and he will get you the right frame. I paid for seats, foam and rails (slider) without covering about $365 or so each...covering them will not quite double your costs from WiseGuys.
www.wiseguys-seats.com Billy dawson down in Texas got WiseGuys into making the frames, You can see his seats installed on the following link
www.carols62.com/59/c1_seats.htm
What did you do in that area? The clearance between the seat and the where the bracket and bolt heads or studs protrude out of the nut looks to me that it would rub. Do you have pictures of this clearance?
Here is a shot of what I am talking about....
You can see how the cushion without any covering wants to rub this area....the seats I am taking out were covered and pulled very tight in this area and not allowed to rub. I figure if I show it to the upholstery what the problem is they can trim and pull in that area to clear....got any pictures of the back side of your seats and any in this area as well?
thanks, Herb