I'm not trying to hate on your project at all.... But I must say..
You do realize
RuneScape 2007 Server - Play Old School RS exists right? It offers everything you've listed above, but with a larger player base. The only thing you could offer is literally F2P & faster experience rates.
Now before you say Oldschool RS is not true old school because of the new items they've added into the game & bosses. Here's why they've did that. Players get bored easily. The game offers a small amount of content.
When you're nearly maxed out the game is no longer fun because there's literally nothing left for you to do besides grind skills.
So you're replicating a game that's already out with a huge player base.... Why?
I know you've tried to complete this project countless times. But honestly man.. Just stop. Your best shot is going at a 500+ revision server and remaking something from that era.
Mige5 has a 2006 server that's replicating RuneScape & has a very very small player base due to OSRS. That should tell you something.
But anyways good luck.