Pretty cool that you were able to save the tank's original paint. Kinda reminded me that one of the original Captain America bikes was stolen just before the movie (Easy Rider) was completed. Assuming the bike was "parted", some dude is probably riding around with the original tank, with the original paint, covered up by someone else's paint. Wouldn't that be a trip finding that tank!
Good luck on the build. it is looking great so far!