This is more me being curious then anything. But did a 3rd party or Shapeway, make ports that the combination pegs on Barricade can snap into? Like before i sell/trade him off, I'm curious of the customizing possibility here. If the ports are cheap enough, i could make my own limbs for the guy and have a whole new set of badies for my Autobots to shoot up.
Scramble Core/thedreaded1 has an array of combiner plug adapters. I made one to convert 8-sided Energon plugs to the larger 4-sided ones, here.
Hm... you could always kitbash Barricade into another torso for a different gestalt. http://www.tfw2005.com/boards/radicons-customs/377358-generations-energon-defensor-wip.html <-- turning him into Hot Spot for a Protectobots Energon-Scaled gestalt. And process already provided the useful links above... basically those ports, plus the PCC conversion pieces, will let you mix/match Energon Scouts with Power Core Combiners. Here's a nifty example of what the pieces can do: Definitely check that thread out... oh, and if you have a Marshall's/T.J.Maxx/Ross store near your area, get PCC 2-packs for a mere 6$. Plenty of kitbashing potential there.