Skillshare – like website

Hi!
I’d like to build a community – social website similar to skillshare.com.
Do you think i can find a template that could be used to begin with and then add / modify it to my needs?
It’s a complex site so do you think knowing wordpress is enough? Or i will eventually hire a designer to help, so i was wondering what kind of language or knowledge would be necessary to build a similar website? Thanks in advance for any suggestion.