You can always take a shot at overhauling it, if as you say you'll use non-ethanol fuel. Q-Jets are mechanically simple, I don't get how people think they're complicated. All carburetors are mechanical computers for fuel. Yes, the adjustments have to be made carefully and in order, but it isn't rocket science. The overhaul kit comes with clear instructions and even the tools for measuring. Unless the throttle shafts are worn and leaking air, you should be able to bring it back to life. Because it's the original carb, most of the settings should be good or at least close.
Overhaul kit, new float, new base gasket, new choke. If the the fuel well plugs are leaking then reseal them with JB weld. If in doubt, I'm sure there are youtube videos for every step of the process.
