Good thing. View finders/range finders are so not real LF. Even on my speed graphic I never used the range finder. A good loupe is all you need.
While a Deardorff is a great camera, it is probably out of your price range unless you get really lucky. I spent a lot of time and energy getting my 8x10 for 1500 dollars about 6 years ago. Granted it was a complete setup with two lens, two backs and a carrying case but still. It is a nice camera.
If you choose 5x7 I can give you a field camera (B&J) for pretty much the cost of shipping. You'll need to invest in a lens after that. Not the greatest camera in the world but a start into larger LF.
tim in san jose