Got my hands on one of H board no M board so way not create your own FrankenFury
Don't you need a level shifter on the comm lines?
I guess not
Only problem that I run across is 1.8v on pin 1 of H board but luckily RPi has 1.8v (not on GPIO).I did this Tuesday night and board is running between 29 and 31GH (after pencil mod).
I do need to give credit to sveetsnelda for his help.