I'm not sure how well a clip-in set of platforms would work. Unless there's some sort of retention system beyond the cleat, they'd unclip and fall off if you twisted your foot, which sounds pretty annoying. The cheap plastic ones manage by having an oversized cleat that jams more tightly into the pedal than a real cleat, but it has to be able to deform to do this.

What about having two sets of pedals and a pedal wrench? I can change pedals in a couple of minutes.