Celebration/Reception

I am having a reception of about 100 people (if that many) at my parents home. Unfortunelty, parking spaces are limited. I`m thinking about renting a bus to transfer guests from local middle school parking lot (if I get permission) to my parents house. Do you think it would work? Do you have any other suggestions on limited parking? Also check out Reception/Ceremony, I need help with that question too, please!