Flight of the Intruder ah? The idea has merit I think 🤔. Prop or EDF? What did you have in mind? They (Flitetest) will probably want a better idea of what to build.
Me, I say design the basic configuration for a pusher prop because that's cheap & easy, but allow for conversion to EDF. Specify on the plans, and provide a pdf of EDF installation.
Just my thoughts, Dave