All I could say is that I'm so happy with my Stampede 4x4 vxl. Great bashing truck. Definitely a stress reliever after work! I want to thank everyone in the forum who helped during my search.
Anyways, here's the list I came up with for upcoming "light" mods:
-->Traxxas EZ Peak Plus charger
-->Aluminium shock caps
-->Aluminium bearing adapters (traxxas part 6893x)
-->Aluminium motor mount with bearing (Kingsheadz)
What else do I need to do? I'm not really planning to upgrade the esc and motor since the truck is still new. Same thing applies to MIP back axles. It's too early for that. I want the old ones to be worn out first.