we don't have the ability to do alignments in house. there is a mustang shop across the street from us called FCCT that does great work and they only charge like $70 for a 4 wheel alignment. Give them a call at 571-434-7374 and tell them that the guys from VIP sent you and they'll hook you up.
235/45/17 is nothing for us. that is the stock size for the EVO too and we do that all day long. Hell we did a 295/30/19 a little while ago and we have stretched a 215 on a 9" wheel so we have quite a knack for tire "maneuvering"