Wing area & all up weight decides everything. Light plane . use any outrunner. Load of bricks with a small wing. Gearboxes. Or you will need +200' to take off ....maybe. Wet fuel planes are already heavy due to vibration of the power stroke.

DO a LOT of weighing of the plane. Add the weight of the 4 wet engines & full fuel tanks as your take off weight. If you can not generate enough thrust. Nothing else matters.