It would not be cheap you are probably close to the $500 dollar range from a backyard mechanic. Maybe $1000 dealer or nice shop mechanic. I didn't know you had to pull the engine to get them in? If I read correctly can you get to them from the bottom of the car. I do not have a jack available to throw it up in the air but my buddy does. I was hopping to toss it on jack stands and just drop them out with out undoing the engine. This would be the deciding factor for me in both building and buying.