Someone who has flown an automated multi crew jet for the last five years will not be a suitable candidate for single pilot Air Taxi work in a piston twin.
This may apply to some oxford chump who's never seen a real aeroplane since flight school. Some of us have previous I will let you know. Piston twins fly at a fraction the speed/ altitude of a turbojet aeroplane, sometimes with far more advanced avionics that you will find on the flightdeck of one. Talk about yourself maybe but that is a bit of sweeping statement.
Currently no FI jobs either, keep your money for now.