Looking good so far. I've been working on my suspension using your work as a guide. If the tracks are still off, do you have any photos of how the road wheels and return rollers line up relative to the sprockets? Something looking down the line of wheels at the sprocket? Or, so how much the bogie sticks out from the plastic cover (rounded portion over the bogie)? I'm thinking that I need to add the spacer like you did and want to compare what I'm seeing to what you've done.