I would think it would be easy to make one like the old TT pipes for the old twins and merge that into 1 pipe. That or the ones they use to make for the old bikes that go to one side similar to HD exhaust and merge that into 1. The foot controls shouldn't really be an issue for either set up as long as bent for our bikes configuration.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!