Thinking about getting back into MF photography, so I've been looking around for a good buy on eBay. I've owned a Yashicamat 124G and consider that model pretty safe (assuming no Yashikor lens) but I'm also interested in a Rollei or Rolleiflex camera. If you had $300 and NO MORE what Rollei would you be looking for? Looking for a recommendation here, as i know little about these cameras but their high reputation. Would I be better off trying to find a Mamiya or Bronica 645 with 80mm lens and a film back?