Looks like I need to replace the tires on the hauler. Anyone have a good recommendation for a shop in the San Fernando Valley area?

I went to Discount Tires, here in Tucson for my tires. My toyhauler had sat for awhile after the previous owner had it. They had some weathering and cracking on the side walls. I don't play with tires or brakes, so I replaced them right after I bought it.
I paid $1800 for all 6 Michelin tires and certificates, and blah, blah tire talk. I just wanted the best so I wouldn't have to host a road side party. That's an old Harley phrase for a break down. I hate to change tires, so I better not have a flat until 2014 or later.
I looked at a lot of tires on the computer, for a lot of days. I picked the Michelins because they looked like a semi-truck tire, just sized down for my trailer. My trailer weighs 10,500lbs. empty, and when we load it with just people stuff, water, clothes, food, and BEER, it's up to about 12,500 (best I can calculate anyway) and that's before toys. So, I really wanted the best tire I could find, and that's it.

Long speach, but tires are very important to me.

BBTank