Jim,
I've had a couple hits one too tall, one tire kicker and one offer a little low. The person that made the offer seemed to be pretty interested and said he may be able to come up with a little extra funding around the September timeframe. If I still have it for sale at that time and they are still interested, who knows.
As for the seats, they are Cobra Classics from
www.autotoystore.com the are NOT the Corbeau brand. They are in black vinyl and by far beat the heck out of the original seats that came with the kit. The cost on them was about $185 each plus shipping (I think).
If I remember correctly, I had to narrow my tunnel by about 5 inches, 2.5 on each side. I believe that my tunnel is just around 7 inches wide without the carpet an padding installed. THis is just from memory though and I've never been accused of having a great one.
John