Cheap as chips, I think you will find, is probably the answer to why they went for the Tu-204F. It's not a bad little freighter, but compared to its direct rival (the B757-200PCF) it's inferior in every aspect. Apart from the price; they really are extraoridnarily cheap. The problems with those aircraft, from a "western airline" perspective, is a) getting them certified to EASA/FAA standards, b) convincing your NAA to get it on your AOC
and c) the poor service and support from Tupolev. Those 3 reasons are why you don't see them pottering about the skies more than they do.
From receips and radials over straight pipes to big fans - been there, done that, got the hearing defects to prove