That sounds about what Foobarr got on his IO kit from last year. It looked REAL nice. I got mine on a GB from Dan @ Angola Armory and must say I've had it out of the box a total of 20 minutes to look at the parts.
I'm going to build a Pirate jig since that seems the most logical assembly method for me and my monkey welder skills.
Rhino, you may be surprised on the 8mm parts. The barrels are suddenly very expensive (was $40 last Spring) and if possible you'd want to get at least two (why have hot swap barrels if nothing to swap?). Since 8mm is larger, try to find 8mm stuff like ammo boxes, drums, and the like. That gives you one size parts for both calibers.