It would be helpful if you woud say if the engine mount is a single or two piece, in other words is the mount a single peice of cast plastic with two beams sticking out or two separate pieces of cast plastic or metal that screw on to the sides of the engine.

On most trainers the goal is to end up with the engines propshaft perpendicular both up, down and sideways with the airplanes firewall. Usually trainers that are designed with down thrust and/or right thrust, is done for you with the firewall itself built in with a down and/or right angle. So just try to end up with the engines prop or crank shaft perpendicular to the firewall itself.

John