DWM, Find somebody who's a dealer through Brownells and have them get it for ya. They can make a buck and you get a better deal. You have to have someone get it for you anyhow, (unless your an FF Dealer with FFL).
As for "Less the bottom metal" being a problem, you can get that stuff off Ebay for near free. That's no big loss. And, you only need it for a repeater, a hunk of plastic will do for a follower if you're making a single shot out of it.