The Makita motor is the more powerfull, smaller, lighter but with a much higher RPM.

The scooter motor is large and heavy, but with the lower RPM easier to work .

Concerning batteries. you can't do much wrong with the vapextech one. But you'll need 2 of'm for the scooter motor, the Makita can work on the 8.4V of the first Vapextech pack.