First of all, Roadking is pretty dang awesome so congrats on getting him! As for your questions, Spoiler is getting reissued pretty soon, don't know if there are any Po's left though. Roadking will be getting a second trailer wich functions as the skeleton for Menasor, it will be included with the final member of the team. Only limbs that we have now are Spoiler and Magnum with Smokey on the way, not known when though. And lastly, I never put anything under Roadking feet to protect the grill and he's just fine. No scratches or anything of the sort. Hope this helps! Greetz.