Maybe it will be a good project, but are you going to make something costum?
LOok i played on a server where the things were costum +500 ppl online ( l2 off )
All the classses had 200 attack speed extra and 300 cast speed extra
There were D,C,B,A,S grade armors, A and S were giving the same P.def
The costum armors were appela, it gave maybe 200 attack speed extra and 400 cast speed
That wasn't unbalanced server
Also were one of the best servers that i played
The Costum armors were only buyeble from Spoil
Walker didn't work
Maybe 1 week of Farm ( 4/5 hours per day ) You don't need to be one 24/7
Hmm it's just an idea, maybe you can use it
Greetz