Is there a reason why header 104-109 are unavailable in the Sitebuilder?
I believe it is intentional and has to do with some under-the-hood work we are doing. I'll double check with the team and report back Philip - sorry for the inconvenience there.
I was able to find all of those components in Site builder - however I did notice that most of them seem to have visual bugs that we've filed into our list of bugs to fix. Are you not finding them at all on your end or?