My car, when I purchased it was in similar condition, I have an idea what your in for. I got my car very cheap also, I made payments on it in the form of parts and work. If the rust isn't bad you can, with a lot of work, end up with a nice car. Most of the cobbed work, well it looks like all of it can be reversed with time and money. I would start cleaning under the hood and searching out the extra wires and eliminating them. If your going to drive it get your fluids checked/changed. Check the rear diff and transmission, you don't want anything there to fail. Get the filters all changed. If you have some mechanical skills you will do fine. If not it could cost a lot of money. I couldn't even think of owning my car if I had to have someone do the work. Just finding anyone to try to fix these cars can be tough. And remember, try to strive for originality. Look at pictures and research, you will one by one get things back to factory condition. It is rewarding and fun to watch these cars come back to life. Keep searching here, almost everything is covered. Soon you will be on a first name basis with a supplier. But, my opinion is if you don't know where to start, start cleaning. I find more things wrong just by cleaning. Get under that hood with steel wool, magic wadding, engine cleaner and every other type of cleaning stuff you have and scrape off the years of gunk and polish up everything. You will be amazed at the results.