I think the kits are a good idea. I tried to save money by installing 2 electric 79.00 wiper motors like you see in a boat windshield or in a backhoe cab. A lot of swearing and butchery and in the end I had two switches, and two modified wipers with a mind of their own. There was a very special sequence to get the instrument panel back in, and though it was only six months ago, I have already forgotten what that is. I remember it was very difficult. Do yourself a favor and buy an engineered kit.