In-Tank Electric Fuel Pump

I recall photos of people installing an external type fuel pump, like a Walbro, inside the tank by just putting it on a rubber hose at the end of the tube, where the sock usually sits. They drilled holes thru the sender plate for electrical wires, maybe sealed w/ epoxy. It seems like the pump would slide in before the float gets to the opening, so should be the same as working a normal sender in. I don't like the idea of high-power in my fuel tank, though most modern cars do that. My Walbro runs fine outside the tank, indeed in the lower engine bay where I can easily swap it on the road.