During the course of a cylinder-head overhaul all the wear items associated with the valve train are better being renewed than reused. It only takes the failure of one old part to undo all the work and expense already carried out.
Tip: Pay particular attention to the valve guides - the usual culprit for smoking exhaust on start-up?
Other valve train components you may wish to consider:
Pro-workshop gasket sealant 08C70K0234M helps take your engine building skills to a more professional level. Add as many items as you wish to the same shopping cart, new valve stem seals 12209413003 exhaust valves 14721MBN670 & retainers 14771MR1000 for example, and still only pay the same single fixed price shipping cost. This component may have other applications within the Honda model range as well as fitting other areas of the same model; please check the part-number is right for your machine prior to ordering?