Guys, I got 168 hours on my 05 yz 450. It needs a motor rebuild which with a cylinder puts me at around $800. Thats being gentle. I have an opportunity to buy an 06 for around 3400. Is it better to sell the 05 that has springs and suspention for me or fix up the steel frame. I LOVE 4 speed transmissions and am scared to move up. What would U guys do?