Grief Prevention Siege system changes

Hello all.

This is not so much a plugin request as it is a plugin edit that is needed the source code is available for this plugin : http://dev.bukkit.org/bukkit-plugins/grief-prevention/

But i dont have the time nor ability to change what i need so im asking here

What i would like:
The siege system is great but it needs more configurable options , i have asked for them to be added but im not sure they will be by the plugin mangers themselves.

• Team support for sieges so that if you have someone " trusted" or perhaps some sort of in built team thing when you siege someone they also are involved in the siege, same for when you are sieged yourslf.

• After sieges certain blocks can "regen" but when they are destroyed they dont actually drop similar to how in towny when someone breaks soemthing you can set a respawn delay where someone can walk through the wall or whatever but after that time those blocks come back.

Please let me know if you could do this as it would be greatly appreciated.