Share 'Pedals with float and adjustable width?'

I'm a long-time Speedplay user on the road, and was given a pair of Eggbeaters to try for cross.  I'm setting up my first cross bike with a Major Jake frame and 180mm DA 7800 cranks.  I tend to ride a bit heel-in, and my right heel hits the rd cable stop.  I'll also probably have a bit of heel rub on the crank arms, which would be nice to avoid.  The threaded ends of the eggbeater pedal spindles…