I didn't have any recommendations per se, but one thing I think would be very useful and functional are tall mirrors stems.
I ride a Harley with standard mirrors above the handles, and I always have to take me eyes off the road to glance at what is behind me. But if my mirrors were like 3 or 4 inches taller, I think they'd be in my natural field of vision.
My suggestion would be to try and find some taller ones.