Buffalo Airways (buffaloairways.com) has an ex-Qantas DC-4, it’s not for sale but everything has a price, that’s if you want to pay the piper.

C-GPSH ‘Arctic Distributor’
C-GPSH, was initially delivered to American Airlines as ‘Flagship America’ in 1944. Later, in 1949, this airplane was sold to Qantas Airlines and was renamed the ‘New Guinea Trader’. From Qantas, GPSH then went to Malaysia in 1958 for two years, and returned to Qantas in 1960. From that point, this DC-4 made its way to a few different companies in Canada and ended up with Buffalo Airways as the ‘Arctic Distributor’.

Unfortunately C-GPSH suffered signifcant damage in a landing accident at Carat Lake on 28 December 2006. Ruud Leeuw has details and photos on this page: http://www.ruudleeuw.com/yellowknife06.htm

There are further photos here: http://s144.photobucket.com/albums/r171/mcelligotb/DC-4/