I'm not sure a trolling motor would even work well with that hull, since there appears to be no true nose to slice through the water. I might be wrong though, first boat I've seen like that. I'd go to the saltwater forum and ask those guys.
A tm will work. Many flat bottom boats with a square front has tmotors including mine.
BlueNitro has some vast experience in Tmotor mounts, lend him an ear.