Once the engine was removed I cut a plate to mount on the transmission. Here is a picture of the transmission with the plate attached.
The transmission has a 20 tooth male spline which I needed to mate with the motors 20 tooth spline. The main problem was the motors shaft was 1/4 of an inch larger in diameter then the transmission. After looking for a way to do this cheaply I finally had to bite the bullet and pay to have a coupler machined at a shop.
Here is the motor mated to the transmission. A bit of advice for anyone who is going to mate a motor and transmission, spend the extra time to double check the alignment I had to redo it once because of misalignment.