Leave it with me. I did find one that would fit - but I can't remember which one it was. I haven't bothered to get LiPo for mine, as it came with a 1500mAh NiMh pack (Jap spec is supplier with NiMh it would seem!), so i'm using that till I kill it/get bored of charging it a fair lot!
Edit - I think it was this one that I was going to order.....
http://www.racing-cars.com/pp/Manufa...m/NR99987.html
It's listed as an RX pack, but I can't think of any real reason why you wouldn't be able to use this one.