2 - not at the moment, but there are many options out there and most (if not all) of the mechanical fuel pumps currently available are designed around a standardized Enderle 3-bolt bolt pattern for their mount clamp and a 3/8" hex drive... and both are incorporated into this cam sync assembly.
3 - don't hold your breath for anything soon; this crank trigger project took me over a year to get it to this point, the next project could possibly take me longer, but it is my primary focus for 2020.