Weekends Away (MHR 900)

I hate the thought of it, but does anyone know of any soft panniers that will throw over the back of a Mike Hailwood Replica rear, with the single seat unit attached? If possible I would like to put a tent and sleeping bag, along with a few other basic camping items. I’ll be using this bike for at least 2 or 3 runs a year.

It would also be nice to be able to throw these panniers over a Aprilia RSV that I also have.