Hey Blood ...

Good to hear that you once again, are in a position to get back into the sort of bike you want.

204 good for stage 2 only. If adding comp as per the stage 3 higher comp pistons, you'd need a diff cam with a later intake close. Ditto with stage 4 albeit you'd also want cams that'll flow more air to the higher flow stage 4 heads.

Good stage 2 cams aren't gonna be good stage 3/4 cams. You need to work out a plan as to what you want.

No you would go to a bigger cam than a 204 if looking at stage 3 or 4.
I can't really advise on SE cams, I've always gone aftermarket with my engine parts.

Maybe just do 204 cams, pipes, a/c and tune until yr 2 years are up and then go to town on it.
you will know a bit more about how things work by then too.

Now your sucking it out of me 
The hand break is still a bit cold .....but we do live in alice so things are warming up !!!!!

I look at my shed and can feel the bike already in there, its funny but I am planing my lines as I drive to work each day 

They showed you a page of cams but didn't offer any advice?
204 is a good cam in an otherwise stock engine but don't expect it to be the same as some one that has spent thousands and thousands on a worked stage 3 or 4 !

I think it will suit you to start off with