I don't think you can 'troll' with what you have and that's kinda a lame approach to a league anyways, however, you can build a better crew though.
Out of the models you have, Francois is a much better Henchman to start with who can do massive dmg. Add Lenny & Bayous from the Somer Box and a Lightning Bug from the Wong box for some healing and to ignore armor (although slop haulers would be better here as LB healing works better with Somer). From there add Ophelia, Rami, and Raphael. Lenny + healing is what turns the gremlin gunline up to punch much higher than their point costs.