Start with a C330f or s, 80+135mm: CHEAP lenses,parts, everything, CLD(you can do it yourself) & then Rolleiflex SL66se. I'd to wait 3 years before this last baby came by! EXPENSIVE ! parts,lenses, everything, CLD(you can't do anything yourself, don't even touch it !) . , , , But why my dear TS won't you go for the best of both worlds ? Mamiya RZ67 pro ii ! With a marker you draw a cm. less in the viewer and there you are 6x6 no landscape or portrait changes for you! With all the lenses/parts/macro/backs (digital too!) or whatever your weary hart could wish for ! And prices are a shame Happy searching.