I'm looking to convert my sled into a trail sled it's a 04 Pro-XR 440. I found the head, but I was wondering what I could do for a bigger tank and oil injection. I'm more concerned about getting the bigger tank because I can carry extra oil with me while on the trails and just mix it when ever I fill up. Please help, I'm tired of searching and only finding stuff for the 03's. Thanks, Mike E.