Alan,

It doesn't matter what sort of accomodations you care for, buff hunt prices are pretty much the same in each country.
The outfitters know that this is a 'desirable' animal (meaning people will line up and pay full price), so there is no impetus to discount them until the end of the season, where there might be a few animals left on quota. Contact a number of outfitters, and ask to be put on a list for leftover animals.

Ann,

They keep those hunts down to five days, because visiting hunters can't stand more than five days of drinking that swill the Aussies call beer.

George