I think the best thing to do is if you're thinking of going, just post a message on the forum in the week to see if theres anybody else who wants to go, and then make plans to meet up and drive/get bus. But if you get the bus make sure you've got a phone number to ring someone from Clevelands to pick you up.
I'll be up in Leeds every few weeks, so hopefully I can make it several times, and I should have the car for most of those weekends too.