MN12 TBird wheels fit. Ranger wheels fit (can't remember the years), All year Taurus rims fit (pretty sure the Gen IV rims fit). best place IMO to see them on the car is www.tirerack.com
Any Team Dyanmics rims will fit the SHO's 5x108mm bolt pattern with a decent option of offsets. I found a local dealer on there site about 2yrs back when I decided to buy my 18x8's, http://www.TeamDynamicsUSA.com .