The 295 came with another fixing intended for use in a car. This is just a sticky base, and I may be able to just stick it to the top of the glareshield (when I have a glareshield).
Alternatively I may be able to fix the yoke bracket to something behind the MIP and cut a hole for it to protrude through.
For now though, I'm just chuffed it's working. And for nothing!
I'll try to summarise how I did it.