He looks nice, but it really depends on how you want him mounted. If his wings are busted, all his primaries and secondaries are accounted for and not shot up, and he has his tail feathers, I'd say go for it.
As far as the pintail, are they common where you are? If they are, I would hold out for one with a sprig. A taxidermist could definitely imp a sprig in for you, but is that really what you want to do? As far as how to mount them, flushing is generally the way to go. Google images will have a boat load of pictures for you to look at.
There are no ducks in the desert!