I think that you should go with 8x10. Despite what some people say you can get real cheap and simple with 8x10 and still produce world class results. (Edward Weston, Morley baer, Chamlee & Smith, etc. just to name a few). All you need is an old B&J or something similar and a cheap tessar type lens, a light builb, some Azo, film and chemicals, and you are in business.