Ive followed your posts for a while and I'd suggest buying the cheapest camera body that's light tight and lens that the shutter works on and covers the format with a little movement that you can find. You've never used a view camera, haven't gotten film processing down very well, don't understand metering and bounce from camera to camera every few weeks.
Forget about what looks cool and get a beater to try. You don't even know if you'll like doing large format. You may not want a monorail but they're super cheap and you can learn with it. Get something like a Calumet monorail from the 60's I used them at the studio I apprenticed in in the early 70's and then when I was an industrial photographer for Union Carbide Nuclear in the mid 70's. They're ugly, heavy, tougher than a tank, easy to use and very cheap. Get an ilex 6" or 8" or similar Tessa's design and learn to use the camera. I'll refer you to Ansel Adams book on the camera, also Exposure and the Negative for processing. You can really learn a great deal from these books.
When you decide if you want to continue with large format, after a few months and exposing a few hundred sheets and getting good results, you can sell your rig and buy something better. You can't really make a judgment on what you need until you learn a little more about yourself and whether LF still has the charm you think it does. There are a lot of LF gear for sale because folks found it wasn't what they thought it was.
