It's lovely to read such an enthusiastic post Hyouke! All the best with your plans!
I do hope you won't feel disappointed if not many folks from here give OSRS a go though. As you know, we're a RS3 FC, and though we do occasionally have some OS visitors, who are of course welcome too, our FC chat about game content is focused on the RS3 game of course.
I tend to recommend to OS players visiting us that they try out 'F2P IM Clan', which because it's OSRS, uses the same system as our RS3 friends chats of course. That does mean that they can't be both in our fc and the F2P IM Clan's 'cc' at the same time sadly.