I'm not so sure I fully understand your first question.. It sounds like your debating on hinging the whole cp rather than just the top? I attatched my cp's base using 4 lag bolts into the 2x4 frame, then just used "L" shaped brackets to put the top on. Suprisingly, it's really easy to dissasemble, but it only works if you have a keyboard opening/slide to access you nuts.. heheh.. I said nuts