Hey Alan, thanks heaps for the work. I decided to add two of these to my collection. I have two DL44's and am currently working on a Greedo Killer.
I have been looking everywhere for more info on them and even ordered a couple of plastic ones as place holders and was going to try and do take offs from them.
I have just ordered on eBay the Ali and brass for the barrel for less than a $100 for the two (Bargain) I'm hoping to get them machined, but if it's to pricey I might just buy a small lathe.
I also want to have a go at casting the handle in aluminium as empty cans are everywhere(So no cost)
Once again, thank you and I will post as the project continues.