Hi Steve,
I would still standby my original opinion that the Benjamin 422 is a better-looking pistol than the Crosman 600, but not nearly as sound a design from an engineering point of view.
If you have one that works, they are great, but I have heard that it's a bit of a lottery when looking for reliable example. Mine works just as well as my 600 but it is in excellent condition and only used sparingly.
As you say though. it is a quirky design which adds to the attraction and desirability in my view anyway.
Mine came boxed with the original accessories and paperwork so if you don't already have the associated instruction booklet, I would be happy to send you a scanned copy.
Brian