I'd suggest you borrow some lenses, and perhaps a camera, before you buy, from a store that sells second hand ones. Or arrange to buy one of those with the option to return, if you are not sure yet, before you spend bigger money.

Regarding your question about lenses, they are generally all suitable regardless of makes, as they are just mounted to a board. What can make a lens unsuitable for your camera would be its focal length vs the length of bellows extension/compression, or physical size, especially with larger shutters. Don't be afraid of 2nd hand lenses, I bought a few from others on this and other forums.

Have a look at largeformatphotography.info for lots of good articles, and pick up AA's The Camera, if you haven't got it yet.