Welcome to KeebTalk!
I’m not any sort of expert on switch modding, and I’m not sure at all if these tops are compatible with your other switch parts, but Gazzew sells most of his switch parts as individual parts and I do know he sells clear tops. They’re about $0.25/top so it may be cheaper to just buy clear top Gaterons and sacrifice them.
@Deadeye is much more knowledgeable about this than I am.
There’s also a switch modding thread that has a ton of useful info and examples on every type of switch part going back several years: