Ok, here's this Canuck's $0.02
FUEL: if not on hand, then nearby
TOOLS: most service stations on major highways, if you ask nicely have basic tools to borrow. Lifts and such? Too much in my opinion. A sheltered, well lit area for work with basic tools would be enough. If somebody needed a lift, then they probably have bigger problems then what you would want to deal with.
FOOD/DRINKS: Gas station, homemade sandwiches etc. Plently of different hot and cold fluids.
BEER/LIQUOR: although tasty and refreshing, I would stay away from. Alot of people like to have a beer or two AFTER a ride, but what about the idiots who like to pound a couple before a ride? Legally, they could come after you should anything happen.
BIKES: shelter from the elements is ideal...but...
You need to sit down and make out a proper business plan. Alot of people on here are throwing out some good ideas, but there are alot. Some you have thought about and maybe some you haven't, making you change your mind, add/delete your original plan. How complex do you want your site, how many services, where etc etc. Would you want it to be a class specific site, ie HD, cruisers, SS etc etc? Make sure you put ALOT of thought into this venture, and then put some more. I am not trying to dissuade you, just making sure that you go in with both eyes open and seeing clearly.
Good luck and keep us posted on the progress.