4. Crew... The latest Flight IIA Burkes' have a crew of 380ish; early Flight IIs had crews of around 280ish; The Hobart class is designed to have a crew of around 200ish. Therefore we'd need to devote 1.5 to 2 times the manpower to the DDGs if we'd gone with off the shelf Burkes. That'd either mean increasing recuitment (expensive and difficult with competition from the mining boom, particualrly for the skilled personel) or laying up some of the ANZACs.
No. You can argue with me about this but I just transferred off one in January
My Flight I has a crew of around 230 onboard at any one time once factor in pregnancies, emergency leave and people at schools with maybe 250 assigned max. Granted this was with our billets not fully filled but that's been a reality for the better part of a decade so there is no point in throwing out reality in favor of a manning goal that is a work of fiction. USN ships only deploy whole these days by cannibalizing other ships in port, that goes for crew and parts.
I was on a Flight II until 2007 and the manning was the same with the exception of a couple extra CTs. The IIs also have flag accommodations but this is rarely in use on any DDG.
The Flight IIA has around 320 crew counting the air detachment. This is packing the ship to the gills, the IIAs actually have less berthing than the previous flights because they cut down aft officer country to fit in the hangers and most have half of Berthing 3 turned into a classroom/crew lounge (the other flights are back modifying themselves a habitability dollars allow, so not often these days).
So in short i don't think the manning is an issue to dictate procurement on. Honestly given the Aussie ships wouldn't have Tomahawk you could cut a dozen bodies out of the US crew complement levels right there.