"Well, I'm glad that I made the right choice then." He smiled and watched her hug the vehicle. It was a nice thing to see, her happy. "There are some parts in the back to get you started. Not many, though. I didn't want to take away the fun of rooting around for them yourself."
He was going to help her if she wanted him to, of course, but he'd make her do the actual work, just guiding her along.
Or maybe he'd be really mean a couple of times and assemble a part, then disassemble it and make her do it.
It seemed to him like the goat lost interest, as it grumpily wandered away from them. Perhaps it was trying to throw him off. Maybe he'd get an ass full of horns momentarily.