I would like a fuel injected engine on my RV-9. I am at the point where Van's instructions tell me to make the fuel pump mounting plate/doubler and rivet it to the firewall. This plate fits the Facet 40108 pump. Is this pump suitable for Airflow Performance fuel injection? If not, will a suitable pump fit on this plate as described by Vans? Can I wait until I have the aux pump in my hand (probably much later in the build) before I install a mounting plate or is it better to do this now, like the instructions say? Thanks for any response!