Ray, we've got bad news for you -- you can't even remove/replace the valve cover with that engine in the frame - so no-go on the removal/replacement of the cam, the head, or the cylinders. The Honda was designed to be trouble-free, but it's engine completely removed for anything more than adjustments. We've all tried and it just won't work. The engine is best installed/removed by placing the bike on it's right side with all of the right-side brackets removed. Leave two of the long bolts in at the bottom for this lay-down. Once the engine is supported on it's right side, have two helpers - 1 to hold the engine and one to help you carefully manuver the frame off of the engine - there is 1/4" of clearance, so go slow. The book says it can be taken out by lifting the engine and manuvering it out the right side. Based on my experience a few months ago and having 3 people on-hand to hold the frame - you could not do it with causing scratches to the frame. This may be ok for repair work, but is unaceptable to many restorers and those having just poured a hundred hours into a rebuild and new frame coating. The "engine over frame" is the safest way.
Regards,
Gordon