I want to score 70+ on FCS teams in my perfect world but I do have boundaries. All of the stuff you mentioned would be outside of my boundaries. I don't mind playing starters into the third quarter if we're up comfortably as long as we rotate heavily. But by the fourth quarter if we were up 63-3 going into the 4th there is zero reason for the starters to be in. That's time to build depth and let some walk-ons that have been with the program for a few years get some reps. I'm fine running trick plays on FCS teams- but do them early in the first quarter. There is zero reason to do that in the fourth quarter.
The way I would do it would be to come out and attack vertically, run a few trick plays like a flea flicker and ideally get 21-28. Our receivers should be able to burn most FCS DB's and our line should be able to pick up pressure and stuff like that. Second quarter I would be a little more conventional and just try to focus on execution. Ideally that would get us another 14-21 points so we would be looking at 35-49 points at the half. Third quarter I would focus on running the ball and rotating guys in and hopefully that would yield another 14-21 points. That should get us to 49-70 for the game at that point. Fourth quarter is depth building time.
Defense I would come out and blitz them back to directional Idaho and try to intimidate and dominate them early but then back off in the second half.