Greetings from a newbie. Just joined TT and need some help. I have 03 RM250 but need to get a green stickered bike to ride year round in California. Have an opportunity to trade for 99 yz400 w/ 426 bore kit. Any thoughts / suggestions about how equal (or not) the trade would be? I know it's hard to say without a ton more specs, but would love some general input.