That's my main camera. If you put it on P it will do all the focus and exposure for you, and if you aren't happy w/ the meter reading in the viewfinder,slide the AE lock and lock the exposure where you want it. Yes, it has a complicated menu but I never go into it. These are essentially pro cameras, but they won't feel like a classic Nikon SLR in your hands.
AF lenses won't be as nice to focus on a manual focus SLR as a manual focus lens, they're not really well damped. You'll have to do some serious research on the older cameras because of potential lens compatibility issues.
The Nikkormats are tough as nails too, there's so many different Nikons SLRs to choose from, your choices sounds fine. I've used them all probably and usually end up buying a Nikkormat, but get put off by the weight and lack of eye relief for my glasses. So it's invariably replaced w/ the n8008s. Those things just work, and the exposure is always on the money.