Make sure that whoever you use will not charge if they can not do the alignment with out repairs. Our mechanic replaced a tie rod end on our RV and stated that there was nothing else wrong with the front end. First three alignment shops I went to claimed that there were serious repairs that needed to be done. Forth shop did the alignment with no repairs. We had this same issue before with a car.
IMHO the majority of alignment shops are rip offs.
Tyrone & Gladys
27' 1986 Coachmen