What do you mean "a bit"? =PErana said:Try talking to the user ThriKreen. He's a bit of a Dev and likes helping people out with this sort of thing.
I'm not going to offer any suggestions on your ideas, it's rather a waste of time at the moment.
Instead, I'd suggest you pick up Neverwinter Nights over at GoG for $10, and look at modding NWN. It supports a MMO-like environment for players and a pretty flexible mod system to add in your own classes and rules and such. You might have to fub some combat stuff (since it's hard-coded for D&D), but the point is you just want to prototype if your systems and gameplay will work together, figure out a way to work around it, like using instant feats to by-pass the hardcoded combat system, and handle things like hitpoints, abilities, skill checks outside the D&D rules.
Will it be slower, sure, but again, this is for testing, not actual development.