Levels should be 60 instead of 50 (or lower ml). With current ml you can clean combo sd without bursting, its to easy to frag.
Mana fluids should give less max mana (110 instead of 160?) and instead you should lower exhaust for them to give skilled players an advantage. When you try to mana with exhaust you should poof, to easier find cheaters.
As players already said, better NPCs with bigger selling list.
Mana fluids should never disappear, for example if you use them on mud they do now.
Exp loss should be lower, at least half of what it is now. Exp gain could maybe be a little higher but lets test it a little more.
Send me script for mana fluid, Sam NPC and Xodet NPC and I will fix it for you. I will also fix a tibicam that's working. Can you also make me a GM char (GM Worr) so I can start banning botters.