The trade off of simplicity vs parts availability makes this idea unpractical. Simplicity won't give you as high of quality daily driver as later cars can. I think you reach the closest to your parameters by adding some electronics and complexity. Many have suggested 70's and 80's cars which have nightmarish early emission controls applied to carbed engines. As noted by Mykl, some of the most complex and difficult electronics are on the last carbed engines. Fuel injected is much more user friendly.
I think the closest you may come is an early 80's Celica, or as suggested by Stag a Volvo 240. 2.5 Chrysler too.