Separate installs would be better really, the idea is to run one as 'me' and a second under a second nick that's mostly automated (with the permission of the people who run the server and everything of course).
Also, I had thought of something similar to what you suggested, using if (nick1 isin $nick) to allow the scripts to run both under nick1 and nick1|ping for when it pings out and has to come back with a new nick to ghost the old one before changing the nick back, but there are a few hundred scripts, so I was sort of hoping for something slightly easier.
I'm not sure if that made it more clear or not, but I hope it helps explain what I'm shooting for.