I moved this to Fan Projects, because that's what it seems to be about. Post away--that's what this section's for.
Granted that not a lot of people see things here, though every once in a while I get surprised when someone mentions something I said here somewhere else.
If you feel gutsy, there are a few other places:
http://www.gbfans.com/http://forums.ghostbusters.net/And of course, for general purposes:
http://www.fanfiction.net/The entire Ghostbusters fan fic community is a little quiet nowadays. And of course FFN is unlikely to pay attention unless it's a super special sparkly Mary Sue who gets Egon to fall in love with her at first sight.
I look forward to seeing what you have done.