I would recommend any front alignment be done at a reputable truck shop that has the proper equipment to align front axles. Most tire shops would not have the proper equipment nor the knowledge to align the axle. I have truck shops to mount, balance my tires and align my front end. The F53 is a truck chassis.
I have the same Michelin tire size on my Newmar as you have, which I purchased through the FMCA and received several hundred dollar discount.. it is certainly worth the membership cost to save on tires. They offer Michelin and Continental tires.