When overhauling the selector drum and forks, replacing as many of the wear and damage prone components as possible will simplify the assembly process required to set up the gearbox correctly. The washers and circlips, in particular, act as spacer shims and need to be perfect with zero wear or damage.
This will improve the change quality, think of slotting a rifle bolt home, in short a lovely smooth yet positive action.
You may wish to consider some of these other transmission selector components:
Recommended gasket sealant '08C70K0234M. Add as many items as you wish to the same shopping cart, new center 24315MV9932 shift-pin 24652028000 & new bolts 90005GHB610 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?