Hi mate, thanks for the reply.
You mention external ignition amps - where did you source these?
I intend to use COP ignition (Toyota Yaris) and lambda with knock sensing.
The car is a 2wd which arrived without harness and ecu (I already have a 2nd hand 710) hence I have a free hand with which ecu to use.
I agree that the quality/ability of the person doing the mapping will make or break the job.