Test fit everything.
My daughter is a big Mustang fan so I got her a Shelby! Well, not a real one... this model! The fit was a bit difficult in spots so make sure you test-fit and sand everything. I found it easier to do most of the detail painting before assembly. I used Post Office Blue for the Shelby Blue. It is hard to find but works very well as the Shelby color. Overall, the kit is pretty good but you need to be careful during assembly.