mix n match textures

players should have the ability to mix and match textures of already paid for mash- up packs/ marketplace content. i for one love everything about the skyrim mash- up pack except the textures of some of the blocks. i for some time now want to have my own, un sellable/ un profitable, texture pack that takes textures from the norse and greek mythlogy texture packs and replace them with the skyrim counterparts. even would prefer to have the original warped netherrack over the other texture packs.