That's pretty high for simple mounting and balancing. My shop charges about $15 per wheel/tire........My local shop charged me something like $100 to mount/balance tires and wheels that I brought in. It may have even been slightly more than that - I'm thinking like $125? I don't know that it was cheaper in the end - I didn't price the wheels and tires through them. They did a great job, and even labeled each one since they were directional. In all honesty, it probably would have worked out to about the same cost.
If your looking for something in 19s that are wide say 295 or up be prepared for a few months wait time.After a little reasearch, being its a fair weather car I am looking at the toyo r888r. I think I will check out a local place today and see what they say. I see people ordering tires and then having a shop install them from time to time and I have to wonder if that is really cheaper?