...I found!!!
My wife handed me the latest issue of Major Surplus & Survival's catalog after I posted last night and on the next-to-last page was the B3-1 air rifle, and the cleaning & repair kits for 'em!!! The air rifle in their ad is rated at 575 f.p.s. and sells for $39.95. The partsreapir & cleaning kit has been reduced in price to $8.95, so I may snap up a couple!
www.MajorSurplusNSurvival.com
So, it isn't 800 f.p.s., 575 will have to do.
Regardless, just above it on the same page is the Beeman FH500 with scope for $89.95; same velocity, raised cheekpiece ambidextrious stock. Good looking rifle, but NO parts kit for it...?
Maybe Beeman would offer them one themselves, huh?