By the entire set he means this.
I mean I've seen just the case go for more than $100 US. The 10 inch barrel is not included in the kit, and is quite rare. The kits came with a 2.5", 4", 6", and 8" barrels. They made 10", 12" and 15" barrels, but you had to buy them separately, and I bet they cost a whole lot now. I can't even find any of the barrels not in the kit on sale on the Internet right now.