I have found a local dealer, well, sorta local, who handles tires for our bugs and buses as well as anything else you might need tires for.
Jed's Wholesale Tire, Inc in Old Fort, TN has;
165SR15 tires for $36.24 per tire
185/SR 14 8ply D (for our buses) @ $41.90 per tire
195/SR 14 8ply for $46.25 per tire (for our buses also)
I just got back from up there where I bought tires for the Eurovan and got, what I believe to be, a very good deal.
Jed's phone number is 1-800-517-1777. He is located almost 5 miles off of Hwy 64 going toward Ocoee. If you need directions I can give them to you.
I had a very good experience with his business today and highly recommend him to anyone needing tires