Nice! The the 16ga makes wonderful speaker cable.....wonderful. Do not terminate and use the bare wire on both ends for best sound. Very lively and open. No need for the 12ga.
However I must tell you if you want to try the cable that the Duelund was fashioned after, then I have a great option to consider. I use it for speaker cable and like it as much as the Duelund 16ga. It is a warmer, more full bodied cable. If you like that, then consider this NOS Western Electric wire. It comes in twisted pairs so you order 12 feet total per side. Under $100 for your set!
http://www.ebay.com/itm/per-foot-Western-Electric-AIW-10ga-STRANDED-cloth-covered-gray-PAIR-/2316636...To recap the Duelund 16ga is more lively and resolving while the WE10 is more full bodied and relaxed.