First things first. If the serial number on your 28mm f/4 PC is below 179400, you can only use it safely on pre-AI bodies or bodies where you can flip up the metering tab. It is possible to grind away some of the mount so that it can be mounted safely -- John White "converted" my 35mm f/2.8 PC in this manner.
As for choice of camera, as a long time Nikon FA owner I don't think it's a great fit for a 28mm f/4 PC for a couple of reasons. First, all of the "advanced" features aren't very useful with a 28mm f/4 PC. Second, the flexible circuit board is a known weak point of the FA, and there is no practical source of spares. So buying one is even more of a gamble than the typical 30+ year old camera. If you're not planning on using the combination with flash photography, an F3 is a nice choice. But if you are, I'd suggest an FE2. The FE2 gives you a 1/250th sync speed, a greater choice of TTL compatible flashes, but only provides 92% viewfinder cover. The F3 works with older 28mm f/4 PC's and provides 100% viewfinder coverage but the sync speed is only 1/80th of a second.
The F100 is also a fine choice and can be had for under $200. But again, it's a bit of overkill, and for reasons known only to Nikon, they didn't build in a viewfinder cover. Instead you need a separate and easily lost DK-8. I think I'm on my 4th one.