The only .22 "carbine-like" rifles I know of were the Iver Johnson, Erma EM1, and the Marlin. Erma (W. Germany) made the rifles for IJ. Fun shooters. but not any more accurate than the 10-22 out of the box. Most sell around $150 - $200, but I've seen 'em go for almost $300 to the "right" buyer. If it is pre-ban, that 20 round mag will be worth as much as the rifle. I had a gent offer me $80 for one 10 round mag for I had extra, and I sold it !
"For those who fought for it, freedom has a flavor the protected cannot taste."
"USMC 8652, 2531, RVN Jun '67, - May 69"