Hey Jeremy when you are ready for the r/s add on I have one I purchased and didnt use I could sel you. I ended up using the retro electic motors and didnt need it.I have this kit. I haven`t installed it yet, but have went through it. I can say it is pretty much plug and play. There are a few wires that you have to terminate, but it comes with all the neccessary connectors and plugs. Very complete wiring harness. With that being said, my car is a 67 rs, so I still have to buy the front light harness, which is not included in the kit you mentioned. If your car is a 68 or standard 67, then it comes with the neccessary front light wiring harness.