Well buying a brand new head, if you bought the springs, retainers, cams, valves, valve stem seals, plus all the gaskets, valve cover, vtec solenoid, you’d be looking at well over 2500 bux.
All the other stuff is that come with the new head from honda is supposed to be specific to that one particular head, the preason being is that they were made from the same peice of metal. If I were you and your just looking to build a nice head. Buy one off hondatech or elsewhere. then buy your stuff and take it to a machine shop.