Looks similar to a friend of mine's trophy room in his house. When he built his new home, his trophy room is 2100 sf alone with 18'ceilings. Since he has been to Africa 12 times, Mongolia, and about every other place, he has a lot of the similar style mounts, including the fighting animals. A WHOLE lot of money in the hunts and taxidermy in that house. One of his friends that I also know who was also a big Africa hunter donated his collection to a small state museum in Florida.
Guys like my friends and your client are the ones who go to the SCI conventions
HOGDOGS - when I lived out West, these folks:
http://www.animalartistry.com/
were then, and still now, are considered some of the best.