That sounds like a Grand Campaign (tm)!
Welcome to the forums. As I told another newcomer, you might be able to find a virtual game (via a VTT like Fantasy Grounds) in the Gamers Seeking Gamers section of the forums. Last time I checked there was also an open RM game on Roll20.
Thank you, Hurin, for your help. What I read of the
Essence companion is partly inspiring. I have RMSR, RMFRP (with RMSR in it, lol!), Arms Law,
Channeling Companion, the Mentalism Companion, the
Martial Arts companion,
Fire and Ice, and
RMSS Spell Law. But most of my books are in storage, so I'm getting the .pdfs off drivethru. I think I may have the Armory also in storage.
I can use a published world (got the 1e Forgotten Realms on .pdf, and the 2e and 3e Forgotten Realms in storage). But I'd rather build something original. I also have some RM2 books, but they are in storage. I prefer RMSS/RMFRP though.
I'm thinking of using the Elemental Companion though, for this new world. I'm going to build the world using the Wiki on Fandom.com. It's easier for me to build that way.