well....I don't know who's event it was at EC yesterday....but that is why most clubs don't run under CAMS rules, they can be a PITA.
In any case, Brad can help you out with the catch can and all other schedule A and B requirements. Unless you are racing a cage is not required by CAMS but some clubs might require them when you are on slicks. I'd never want to discourage a motorsport competitor, but there are plenty of events where a cage is not required - a cage is that key decision where your car is no longer a reasonable daily optio, and if you are going to go that way there are lots of other options worth considering.