Funny you ask this.
I recently went through endless quotes, and internet shopping.
Eventually bought a set locally for a steal(were special ordered, then customer canceled after they arrived at the shop)
Overall for the tires I ended up with (michelin anakees) locally they wanted from 340 to 365 for the tires mount, balance, and new valve stems.
E-bay, found the same tires for 250 or so for a set that would fit my 19 front and 17 rear rims.
I got lucky happened into the right shop with the right wish list for tires, and they had a set for just under 200 for the set.
AND I still get local warranty and such offered for the tires.
Thats one thing you don't normally get for internet pruchases.
Check local shops that have online stores.
You can at times get online prices, with local service.
I am thinking of mounting this set myself using a new method I recently came across.
l8r