Need Help In Putting A Motor On A Board

[HOOP]

WHATS UP FELLAS,
I am trying to duplicate my snowboard so i can send in the original one and put up for auction for the MFCA convention (see thread - PRETTY BOY NEEDS YOU!!!)
I HAVE A NICE 620 BOARD (BLUE ENDZONES- NFL) BUT IT HAS NO MOTOR ON IT. I HAVE PLENTY OF OTHER SMALLER (500) BOARDS WITH MOTORS ON THEM. HERE IS WHERE I NEED HELP.......

**CAN I TAKE THE MOTORS OFF OF THEM AND PUT THEM ON THE 620?
**HOW DO I DO THIS?

**CAN I PUT 2 ON FOR BALANCED POWER? OR WILL THAT BE TOO MUCH?
**IF SO, HOW DO I DO THAT?

**OR DO I HAVE TO GO OUT AND GET ANOTHER MOTOR FROM some-WHERE???

**HOW DO I DISCONNECT THE MOTORS?
**HOW DO I PUT THEM BACK ON?

I AM NO DUMMY, BUT HANDS ON-ENGINEERING INCLINED, I SURELY AM NOT. SO PLEASE, IF YOU CAN, TAKE ME STEP BY STEP ON GETTING A MOTOR ON THIS BOARD PROPERLY.
THANKS SO MUCH IN ADVANCE FOR YOUR TIME. IT IS MUCH APPRECIATED.

SCOTT