The parts are not that expensive. I'm not sure where you are located, so any price I give may be off. However, here, in PA, the blower motor would cost in the area if 75.00 and the resister would be around 25.00. The problem with this type of repair isn't the parts, but rather the cost of labor can be high. The blower motor requires part of the dash to be taken apart and it can take a couple hours for the repair. With labor costs being so high, it can add up.
Let me know if you have other questions. Also, please keep in mind that I am not there to physically check the components for you, so I could be wrong. However, based on your original description, I feel somewhat confident that I am correct.
Thursday, January 30th, 2014 AT 9:45 AM