Thanks a lot aggie. Were hoping to ride from Sanderson to Comstock, 90.5 miles. We have 2 long days, this one and Van Horn to Fort Davis. I'm thinking about getting a camelback and just use it for these two rides. I guess there is no services, between these two rides. I must say, I'm kind of concerned about getting around Austin and San Antonio. I'm thinking about leaving the people I'm riding with and try and make it from La Grange to Katy, where I live. Thanks again for the reply.
There are plenty of motels in Van Horn, all reasonably priced.
Van Horn to Fort Davis is indeed a long day, with nothing in between, after the service stop approx. 20 miles out of Van Horn. I cycled it in the opposite direction, carried extra water, and found it fairly challenging. The direction from which you intend coming, will mean that all the tougher climbing will be towards the end of the day. That said, it is really a beautiful ride.
Fort Davis has a motel which also offers camp-rooms. The camp-rooms are quite comfortable, with a wash basin but you need to share shower and toilet in a common facility.
I also camped (really just set up my tent), at Langtry. Comstock is very small so it might be a good idea to book accommodation in advance. In Sanderson, the Budget Inn looks after cyclists. It is at the far end of town from the direction you will be riding.
Marathon has a hostel which is at no cost to cyclists although a donation is the correct etiquette. I didn't stay there. There is a motel and hotel in town.
I stayed in many motels on my ride last year and found the majority of them to be quite affordable, clean and comfortable. I never stayed in a dud one.
Have a good ride.