If I wanted to achieve the same visual look on the neus as the MMM motor, I'd butt-joint solder the 10g wires to the wires sticking out the motors, then use some heatshrink tubing over the neat join, making sure it went right upto the motor can and inside a little even, to prevent movement from wearing through the insultion on the wires as pointed out. It wouldnt look exactly the same, but close enough to look good.
