If I read all this right, all I need is a barrel for my Springfield and a set of .45 Super recoil springs to go with it.
'Scuse me a minute while I wipe the drool of the kybd here. My only hesitation about all this is based pretty much in going away from a "straight" case and going to a "shouldered" case, with all the obvious potential complications. Who sells dies for this critter? I supppose Huntington would list them. RCBS?