Used T2s are going for under $200 everyday here, actually my buudy has one fs if your interested, but aren't FK04 parts getting hard to find as well? I know one guy at my track that was complaining about that. As far as batteries, I bought some unmatched but gauranteed over 1.2v and a set of matched with low numbers and both sets of packs perform the same, both cost me around $100 for 3 packs. I can get away with just 3 packs on a race day, even as few as 2 if you don't want to practice in between rounds or test your setup.