I suppose I yawned because whenever there is a thread asking about an rf camera, it nearly always gets filled with comments from Leica fanboys about how wonderful their Leica is. If the OP wanted to know about Leicas they would have asked about Leicas. It's as tiresome as Windows vs Mac.
Andy, I have yawned enough, trust me (or better, ask my friend Ryan

). I carry my beater M4-2 these days because it was the crappiest/cheapest/most readily available box when I ended up with two gift 'crons a while ago. I simply see the combos I mentioned as viable options within OP's constraints. Compared to M4-2, R3A has a superior finder, non-leaking, non-burning shutter, auto mode, standard finder attachment thread, swing back... and may be somewhat lighter, too.
"If the OP wanted to know about Leicas they would have asked about Leicas."--Not necessarily. Back then I was asking around about R3A as well, a tempting little package indeed, until I realized that it won't work with my DR. It was an unasked-for post like mine and rich's that exposed this glitch in my thinking.
All in good faith,
Vilk