Most people will be using tourney guns but you can train using anything - though you may get shot to s**t!
I mentioned your predicament to Kitch and a couple of the Quake team and they seem to think that, between them, they should be able to find something for you to shoot with - if you want a loan of something different?
Let me know if you are coming down, so that I can add you to the list - also, let me know if you want any paint.
Start time - about 9ish