Looks like you got a decent deal. HG doesn't do custom Econs any longer.

I have a 0F custom Incubator, set of 20's (Burrow & Incubator), 40's (Burrow & Phoenix) and a 55 synthetic TQ from JuneBug Dawn. All are Premium 950's. I have yet to find a combo I can't put together to match the seasonal temps. I augment these with down pants, down anorack and Possum Down socks which extend the range of all when/as needed.