Don't take it as gospel but...
I would expect the AFCO to snap your arm up but don't forget that you won't get streamed to either WSOp(AEOp) or WSOp(ALM) until after the 24(?) week generic trg package (though 25%ish of the NCA output of 55 Sqn NCA are streamed to the latter spec).
I wouldn't have thought you would have to do Halton again (apart from maybe kitting) then you'll join A Sqn at OACTU for that course (not sure on the length). I think 55 Sqn runs open days for prospective candidates but I'm not sure if it's open to civvies (even ex-serving ones) but give them a call at Cranditz to find out. You never know, they might offer for you to come along anyway. Nothing ventured and all that...
Feel free to PM me for more info if you don't get what you want elsewhere.
Good luck anyhow
