I just did a Muggy conversion and it was really easy. Since the Muggy is setup like an 1/8th scale buggy, with the center diff, it was just a matter of bolting a motor mount to the diff mount. I did mine in less than a day and the Muggy has been outstanding as a basher and does alright on the track too. I did have to do some doctoring, in terms of chassis stiffness and steering, but it wasn't anything major. I love my Muggy. I also looked at the LST, but the lack of the center diff led me to the Muggy.

BTW, why are you looking at the 1512 insead of the 1515. I would imagine that the 1515 will have significantly more torque. Unless my scale is wrong, my Muggy weighs in at around 13lbs with the stock tires and a 6Ah 4S battery pack.

What controller are you going to run?