In theory, an analog pedal would work with both types of game as you should be able to set an 'analog threshold' (say, half way depressed) in MAME that will then register as a digital 'press', plus obviously you retain analog functionalty for those games that need it.
You can go budget and pick up a PC steering wheel with pedals, then just use whatever wheel you want if you've already bought a 270 or 360 wheel.