Batopilas would be a top choice. I recommend staying overnight - and drinking a lot of cervezas - to get a feel for the place.
Creel is nothing more than a launching point.
Although there are enough little rides around Creel that can keep you interested for a day.
Fuel isn't a problem. You may be getting it from barrels in some towns, but it's there.
Bottled agua is plentiful.
You can cheap motel it most everywhere.
Everybody in Mexico has a knife. Take yours too.
Insurance isn't required, but IS recommended. Baja Bound Mexican Auto Insurance - Travel Safe in Mexico!
and MEXonline.com Mexican Auto Insurance & Legal Services Directory
are some sources.
You'll get a tourist card at the border for your person, and you'll get a temporary vehicle importation permit for your ride. Both cost a hair over $20 each. You'll need to use a credit card (Visa, MC, some borders accept Amex)to secure/guarantee the vehicle permit or will be required to post a cash bond of between $200 and $400, depending on the age of the bike. This cash bond is returned when you leave.
Note: It's very important to cancel your vehicle permit when leaving. Don't be all excited when riding back and forget to stop at the border to do this.