Whoa!!! Been a long time since I posted here. Everything looks different on the site. After a big accident in '09 where i shattered my knee, I hung the helmet up.... BUT I'M GETTING THE ITCH AGAIN!!!!! I found a wr400 for really cheap, but sounds like the motor is toast/siezed. I realize with these older bikes, there is a shallow point of diminishing returns, but I was wondering: 1) What the cost of an engine rebuild is (doing all labor myself)? 2) Are there any other options for engine swaps (WR450)? I prefer this approach if it is feasible... I am very mechanically inclined, can weld, and have tools/garage. Is a better option to wait for a 426 engine to come up for sale? Thanks guys!!