Nikon F65 (SLR) or Zorki 4 (Rangefinder)?

I'm interested in buying a film camera under 100$, more so in a rangefinder.

The Zorki won't take zoom lenses or anything over 135mm, it's also a nightmare for closeups and cost means that the Leica lenses it technically takes are difficult to get.

You also need a viewfinder for any lens other than the 50mm.

The Nikon has TTL metering, adjusts automatically for any lens and closeups are a breeze, but it's heavier.

I do use a rangefinder (Kiev 4), but as a supplement to my SLR, not a replacement.

Certainly rangefinders make you think. I'd go for an SLR first, unless you really want to learn the hard way