Just wanted to throw this out there as I have been looking around for tire sources.
These guys appear to have Michelin XL's and XZL's as well as several other military radial and bias ply tires:
http://www.gaystireservice.com/index...ilitary_Radial
These guys have military NDT and truck tires in the right size (including a good price on the STA Superlug 9.00x16's):
http://www.universaltire.com/cart.ph...ategory_id=290