Sourced a Camaro high output alternator, LS3 power steering, water pump, idlers, larger variable displacement air con, and a fluidampr (harmonic balancer) for the crank accessories drive to throw on the front dress.
It is a rare (first) opportunity to do this as (hopefully) won't need the front off / engine out for another 200,000km. Chances are one of those original factory things wouldn't last til 350-400k km, so now is all reliable top spec without fancy aftermarket, and I paid a reasonable price for the lot.
If you would like any of the take-off accessories which are in very good condition (late model VE / VF compat.) PM me.