That's great step. Is there a possibility of having two additional features with fees by keeping it at 10% or may be 8% or whatever suits better?

1- X % will be market fee for providing services.
2- Y % will be shared by current holders of punks equally.
3- Z % will be given to original minter of punk.

Total Market fee = (X+Y+Z) %

For example if you keep total fee as 5%, X = 2.5, Y = 1.5 & Z = 1. This way everyone involved in project is incentivized.