Just wanted to confirm Blaine's experience with Discount
Tire.  I got my MX (185-14) Michelins there and don't
remember the price, but I also got the Michelin exclusive
tire for my Range Rover (XPC) there, also priced less than
Tire Rack.  Discount never looks like much on the outside
and I think they may sell mostly "Arizonan" tires, but they
know unusual vehicles like ours and have/can get (they had
'em when I asked) the tires we need.  The installers at the
one I shop at use a torque wrench to manually finally
tighten wheel bolts/nuts and I can bring in my Bentley
manual to show them the correct value.  They do (in my
experience) try to charge extra for a warranty, but I've
successfully self-insured myself, which I think is a minimal
risk with Michelin.