I wouldn't sell it unless someone offered me a crazy amount for it, but if you really are set on selling it then a Rolleiflex old Automat, with the Tessar lens, stopped down a couple of stops it would be very difficult to tell the difference between it and a Planer, or, possibly even cheaper, a Rolleicord V or VA, with the Xener lens, even better than the Tessar, stopped down very close to the Planer, As far as Folders go, something like a Voigtlander with the wonderful Color Skoper lens, or maybe an English made Ensign with the Ross Xpres lens, even better than either the Tessar or Xenon lens, possibly the best Tessar type lens around, I have and use all of the above suggestions, My Favorite is a Rolleicord in Tlr,s or the Ensign in Folders, Whatever you decide good luck
Richard