Sometimes answering such basic questions gets tiredsome and ridiculous since YOU should KNOW what your doing when your rebuild an engine, first time or not. Rumble has been here a long time helping MANY people and mostly new guys like yourself. And you jump all over this guy in a flash. Nice, real nice.
Camshaft question;
If your rebuilder did it right, then no. Since I can not see the issue, more lube will not hurt. Do you know what a oil pressure priming rod is? Get one, insert in drill, insert in oil pump, turn to turn oil pump and send oil up and through out the engine before start up. Have a freind turn the crank while the drill is going. This helps against dry start up.
(Is that clear enuff for ya kid?)
Adjustment issue;
The lifter has .080 play in it. Have your heads been milled? Then there's no worry.
Cylinderhead issue; Direct swap. (Ya book tell ya that one? It should have. If it didn't, throw the Chevy book away)
We all help and share here, to bad your a thin skin baby ready to throw in the towel on a OMFG in "( )" to be taken as, like a sigh, off the record, besides the point.
You should look in the mirror before bashing this forum. The real issue is you.