Aha! That's why you've been picking up the new project trucks - to distract you from getting into the body work
I find that I just have to make at least some progress every week or I'd get de-motivated pretty quick. Now that I'm seeing some visible proof that it is getting there, it has the opposite effect and is motivating me to get it done. I keep telling myself that all the other parts are smaller - less work - more visible progress quicker. We'll see but it is keeping me going.