Custom URF settings

When more than 5 of my friends come and play we play a custom matches but since URF mode came out we wanted to play that so i thought that custom settings could be added so we can add urf mode into them or other settings like more starting gold, or increased xp gain because we usually play on summoners rift and we all go mid and fight and it takes ages to get anywhere because of the minions dont provide a lot so xp and gold gain would be great