BIG WORD OF CAUTION. Someone said to get bead blasted. There is no blasting process that you can use on exterior sheet metal that will not ruin the parts. Glass beads, any type of sand or media that will remove rust will warp the panel until it is not usable. Blast media is like little hammers and displaces the metal and warps it until you have to trash it. You can do under body components but blasting warps the material.
I use the liquid Aircraft stripper and like stated I put actually pieces of stretch wrap on it to keep it from trying you. You can get at Lowe's, Home Depot, Wal Mart, etc. Get some good chemical gloves and have eye wash materials hand. Wear goggles and keep well ventilated. We did a VW beetle once at a local .25 car wash. Put the stripper on and used the car was to blow the paint off. Sort of like washing your oily greasy shop rags at the laundromat.
Like already mentioned you will need your phosphate solution and some coarse steel wool or scotch brite to rub the metal with to work out the rust. It would also be better to get the fenders off to do the stripping. You will need to wash with water to remove the stripper. Same with hood and even the doors. Get you a couple of the fold up horses with foam on them to put the parts on to work them. I think Harbor Freight has them or Northern Hydraulics.
A molasses tank for fenders, doors, trunks and 1/2 hood at a time can be working while you are on the main body that cannot go in a normal tank. Air and sand paper is expensive, lol.
If you look around Craigslist the 275 gallon bulk containers are usually $50. The 5, five gallon containers of liquid feed grade molasses will be right at $100 and then just tap water will give you 250 gallons. Cut the top out of the container and the fenders will stick out but you can do one end and then prime it and do the other end. You will have lots to sand on the body for sure. You can also use the molasses to clean brake drums, headers, calipers anything with rust on it. Just will not do anything if oily or greasy. DO NOT PUT ALUMINUM IN, WILL EAT IT UP.