Hi I'm new here
I have been through this whole OM thing as well.. and I came to the conclusion that my black OM-3 is the last camera I’d ever part with, period.
I have (or had) basically all from the 1 to the 4 at some point, some of them even in different variations, (N's SP's old, very old ones, MD's...), I’ve ended up selling almost all of them, only keeping the OM-4ti black (for TTL flash, long exposures, auto-mode etc.), and the OM-3 for the pure 'full mechanical reliability' and feeling (I still have a om2n in the drawer, but this one gets used rather seldom. I also sold my om3ti because I got an excellent offer an I made some profit out of it. I would like to own an original M-1 one day, but I'm not in a hurry..)
The OM-3 Never let(s) me down, no battery drain issues here (unlike some older OM-4, or OM2SP’s…) which I had experienced personally)
The black 3 is (in my opinion) the best looking and sleekest of all OM’s, I like it so much because it's so reduced to the essentials, from the gravure, lovely full black colour, even the self-timer has been left off, one mode only MANUAL (and a battery check position of course). yes it looks even better than the 3ti which unfortunately come with those 'darkgrey' top- and baseplate only. but this is just a preference thing. I don’t flash in 99% of the cases, so I don't miss the TTL either.
It’s the camera I use on long trips, I can use it with a handheld meter if I have no spare batteries, an additional advantage is the superb metering system and a the (for me) really useful 1/2000 mechanical shutter speed, as I'd like
to shoot on the edge wide open even in daylight for portrait work.
I rather say, get one as long as you can. It will fit your 50 1.2 perfectly.