Hello
I understand from your answer that there will not be any real gallery component.
I use acm on ja resume but this is not a good or real gallery component, it s a gallery styled multipurpose component which is a poor solution.
I ve tried to integrate a 3rd party image gallery in ja resume but it dos not look too good.
If you look at your competitors, you ll easily find a competitor that does have since few weeks an image gallery component that turns to be quite popular and integrates in their builders
Maybe you should question your clients to see if they d like to have such a component in ja builder and templates.
tks