It actually made it, at least comparing it to my other conversion, easier to drive as you didn't have this brick of a battery hanging off the chassis as much.
Here is a link to the tekno stuff:
http://www.amainhobbies.com/product_...C8-42mm-Motors
You should also look into the Tekno thread on this site as there is a lot of good info there.
Both brands are good stuff.
Another good site to use:
http://scriptasylum.com/rc_speed/_top_speed.html
use this to determine what kind of pinions you need for the given battery and motor setup you choose. If you need help on using that feel free to let me know. You will want to shoot for about 40 mph top speed. this is a good place to start gearing.