I think the M4/Rigid combo you’re considering is fairly priced, if they’re in excellent cosmetic and mechanical condition. I sold an M4 on RFF a few weeks ago for $1275. It had been recently CLA’d by Youxin and had new viewfinder windows installed (which are a really nice upgrade, FWIW). The body was very clean. The rangefinder had a couple of very tiny spots from mask aging. Very nice camera. I wasn’t trying to make a killing on it...it was a good deal for me and the buyer.
I also bought a 50 DR with goggles on RFF about a year ago, from a seller in the Netherlands. Paid about $975, shipped. Mint cosmetics. The lens turned out to have coating deterioration around the edges of the inside front element. Bothers me a bit, but I’ve tested it and can see no effects at all on image quality. Could have returned it but decided to keep it. Maybe a fair deal overall... maybe not.
I also recently bought a Leica iiif on RFF (thanks, Gerry). Recent CLA, incredible condition, fair price (probably underpriced, actually). I think these are the real value in Leica’s today, even with the cost of an external viewfinder, if you can appreciate their idiosyncrasies.
I mention all this because actual condition, and CLA costs, make a big difference in pricing and value. I prefer to buy gear that that you can inspect and return if necessary. Private sellers on RFF generally offer that, as do some EBay sellers and dealers like Tamarkin and Igor’s. Patience is a virtue when buying gear, although not usually one of mine, unfortunately.
