As directed, I scuffed up a top section of the fairing, then added a squirt of RTV and reinstalled the fairing. I'm not entirely sure what the point of that is.
I also remade the hinge pin and locking hinge and drilled and installed. I'm still not entirely happy with this method and the liklihood it's going to chafe the gear leg. Maybe I'll put some RTV in there. More than likely, once I have an airworthiness certificate, I'll just safety wire the hinge pin, which, by the way, isn't going anywhere since the fit is very tight.