Value of the rifle is absolutely impossible to determine given that at the time they could be ordered with a significant number of custom accessories and enhancements, and these can dramatically affect the price.
Anymore, and remembering that gun prices are HIGHLY regional, a nice condition 1899 can bring well in excess of $1,000, and that's just for a factory standard model.
I THINK that Hornday is loading .303 Savage ammo once again, so you might try that route.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.