Here's my progress for today.
I figured out the fitment of my trx450r rear shock is scary tight. There are only thousandths of an inch between the frame and the rezzie. Might be that honda made slight changes between the '04-'07 shocks and the '08-present shocks? Mine is off an '09.
Got the motor in and the rear end together before I had to leave.
I am going to check out the bars tomorrow because I know awk and slick had troubles with their fat bars and the mounting of the brakes. Hopefully I won't have to cut my throttle housing but we'll see.