With the Type 99 price can be effected by what series and manufacturing plant the rifle came from. Bi-pod, AC sights, bolt cover, muzzle cover, all can have influence on price.
A fully original early Type 99 with all the issued parts can be near 1K. Most are $200-400. I'm under $300 in this.
This 99 is from Nagoya Arsenal, a series 5 with original Urushi finish on wood. It has the mono pod, aircraft sights, mum is ground, Sling, bolt cover and muzzle cover are repro.
Type 30 bayonet made by Matshusita National Denki, they have evolved into the present-day Panasonic Corporation.