Not a A...but a C-bodie , always beem a A-bodie guy; worth it ?
Pretty sure my 1965 C-body is a unibody, with the same suspension and steering design, just like my A's but everything a larger scale. There are front and rear "frame rails" that are welded to the unibody. Next time I'm under I'll look closer, but don't recall any frame rails extending aft past the Transmission Cross-over rail (and torsion bar rear anchors). Unlike my A-body, I don't recall the K-frame being bolted to the frame rails, but rather welded to it, so can't do the trick of unbolting it from the body to lift the body and roll the whole front assembly out together (engine, transmission, steering, suspension).