Remington made some M1903s with the barrel-mounted sight in the early days of WWII before production of the 03A3 started. The design was simplified into the 03A3 to simplify and speed production and lower cost. I cannot imagine any M1903 (or 03A3) having anywhere near that price. But there are some really scarce early M1903s, such as the first ones using the M1903 cartridge. Nearly all of those were later modified to take the M1906 cartridge, and very, very few escaped modification. Ditto those with the built-in spike bayonet.