LOC meets aren't about who's got the most mods etc, they're about (it seems to me, anyway) LOC members meeting up to chat and have fun. No-one will mind if your motor is as standard as they come or modded to the limits, you'll still be just as welcome either way. Before my first meet I was also a bit concerned that my car was pretty standard, but once I got there I found that it didn't matter a bit.
Just beware though, once you've gone to a meet and start seeing other members' mods you'll soon come up with a wish-list of things you want to do to yours !