Building an AMT '69 Barracuda model, need some help

Oh ya, I really appreciate the tips. I just bought the cheap glue but sprung for some nicer brushes...but they're all messed up already. If we continue with this I will buy better glue and brushes, but the kids need to be a little older.

A friend told me to let my son have the car when we're done and let him do whatever he wants with it. We figure he'll destroy it then the next car he will likely want to take better care of. If he's like me, he'll want to put firecrackers in them and see how good the glue really holds!