The white bolt is simple to explain...it costs money to re-blue the bolt and after they resurface the bolt flat in order to stamp a new (fake) serial number, it's cheaper to buff polish the bolt rather than re-blue it.
YA, this guy is nuts...He sells on g.b. as "jackcounty" and has had numerous over priced questionalble k98's over the years... These gun's either show he has "no clue" or he doesnt care what you think!!! ALot of dealer's are winchester/colt guys and end up dabbling in everything because of the nature of the buisness.. I'm not sure what his deal is but it "aint" k98's !!!!!!!!!!!!!!!
Trolling for impulsive gift buyers is quite the pass time these days. So few make a decent wage or even have a job these days that only well established idiot's can afford costly mistakes. Parts guns with about good bores will be For Sale a long time at the asking price of that piece of a pile. Sunfish