What do you mean by 'Affordable?' To some people, that's a Voigtlander R3, and to some, that's lower-rent than even those by an order of magnitude.
(Actually, I have one, that the world's stubbornly-refused to adopt, so I might sell or trade, basically the same camera as aforementioned Canonet 28, (Really: A35F) only black and with a popup flash, (if you don't mind hands-off automated exposure, apart from an ASA ring) ... all functional but for a few back seals I can and probably should replace, and needing the usual battery adapter for the metering, which in this case means any exposures at all. Works on a Wein cell, though.)
Also for less panache, a far better lens, and normal batteries, I've got a copy of the coveted Canon AF 35ML, which can run on AA's, has a 40/1.9 (but a red 'L' stripe on the bezel,) a blown flash tube, and primitive zone AF. As well as of course surface pieces copied from the A-1 and 'New F-1.'
Is actually a rangefinder, only you can't touch any controls but the ASA ring.