David,
I did shop around and located a dealership in North Carolina. I suggest you work with the same company that has their shop in Arizona(Pack Racing). Regarding the balancing, my tires had the locating dot from the factory that alignes the tire in relationship to the valve stems. If you have the dots and the right folks who will take their time, little weights are needed. Locally, I used Bob Drye, he took his time and i have less than 2 ounces per tire!! For the 185's, 6 is the right size, a 7" rim will make them ballon out some. I wouldnt do that but it is your car--i understand the "use what you have" and buy biger next time. I went with the standard regular finish with the clear coat. I purchased mine from Mr. Bennett French at The British Connection--he can be reached at: thebritishconnection@yahoo.com I do need to recal the speedo as i went from 185/70 to 215/5's.
Sal Fanelli
1982 Caterham S3 XFlow--restoration completed 06/08!! 98,700 miles and still going!!