Nice! I'm still pecking away at mine, was supposed to be finished last year but that's how they go sometimes...
Are the tanks and bumper among the scratch built items? Looks like you nailed them both, and they've been tricky details to find.
Excellent job on this! I built one last year, and was surprised at how enjoyable it was. Relocating the axle was the only real problem I found, though I also did a tire swap to get the big-n-little look.