Electric Fuel Pump

This is the typical "thousand ways to skin a cat" question.
Does he NEED an electric pump? Highly doubt it
Can he run one without consequence? Probably
Are there a million street cars on the road with factory mechanical pumps doin just fine? Yup.
Are there another million with holley blues? Yup.

It just comes down to what line of thinking the op wants to go with. If he HAS to have one, then great, he can make it work just fine, and do it safely with a switched, relayed, inertia protected pump. Does he at all NEED an elelctric pump for his setup? Not in the slightest.