For ballcups, I just found a couple sets of Losi truck colored ballcups, and took a cut-off wheel to them to shorten them up. Blue, Red, bright yello, bright green are some of the colors i have seen in the losi truck ballcups. They are exactly the same as stock, just slightly longer for the tracks.. 3 seconds and a dremel cutoff wheel fixes that.
As far as the heatsink goes, Trinity and Dynamite both make a motor heatsink. I ran the XX-4 heatsink for a long time, but accully removed it after a motor guru talked to me.
