I'd go with a A-1 in your case. 50/1.8 nFD is way cheap. Even more, you could use a T60, if you want really a cheap body for all the basics of photography. (Cosina-made). They cost next to nothing, included LM.
Well, i have a T60, but can't get the lens off (exactly that 50/1.8 nFD Kitlens) sadly, because you can push only the release pin/button 1mm into, and then the lens isn't dismounting, even with force. Luckily, i only paid 10 EUR for this combo, after my 1st one died, decades ago...)