sheridan "blue streak" circa 1972

Does anybody know someone, who works on these, or where to get a rebuild kit. I inherited it from an old friend, who has since passed away, and would like to keep and use it as a keep sake. I can't imagine it's worth a whole lot. I have checked the web sites and personnaly talked to a Crosman rep and am kinda out of ideas. Any help is appreciated. If I do send it off can I take the stock off and send the rest of the assembly by UPS, USPS. or the like or will it have to go through an FFl.

Thanks.

likemhot