Newbie: I have a functioning Grav core + admin install, how can I get a skeleton?

I installed the base/core + admin Grav packages, created content and did some config. Only now did I realize there is a One Page Site skeleton that is perfect for my purposes.

Is there a way for me to install just the skeleton without losing my config and content?

Thank you!

@mm1994, You could consider hiring someone to do the labour of copying your config and content into the skeleton... ;-)

Hehe thank you, :-) I was unsure if copying user/config would break the theme/skeleton. :-)