We may be seeing each other out there. I have my plane tickets already for a flight into Seattle on 8/29 & home from LA on 9/30 and plan on doing most or all of the SC route as a credit card tour during those 32 days.
I already bought the maps and I can tell you it's possible to do the entire trip staying in motels every night. I can also tell you that after previously doing two long tours, one at 3000 miles in 30 days and 1 at 1800 miles in 19 days as 100% CC tours, when I reviewed the maps I decided to do things a little differently this time.
Here's why I came to the conclusion I wanted to have a back up to a pure CC tour. There are 3 long sections on the # 2 map that are w/o services, 1 @ 93 miles, 1 @ 90 miles, & 1 @ 73 miles. If you hit each of these sections first thing in the morning and that's your entire day, no problem. But this really tends to screw up your previous day as you go short or long to accommodate the next day. And there are shorter spaces that present the same problem. Do you want to do a 65 mile day (kinda short) or a 115 mile day (kinda long) in order to get to a hotel? In the end I decided this time I was taking camping gear.
I did some research and bought the lightest tent, bag, and pad I could find. The total weight for these 3 items is under 3 lbs. & cost was about $1000. I think for about 1/2 that much money you can be under 4 lbs , & for about 1/2 that much again you can be under 5 lbs. I will still not be taking any cooking gear and expect to only be sleeping at camp sites 3-5 nights total.
Do yourself a favor, buy the maps, much will become clear when you are looking at them. If you decide not to do the trip you can sell them on the classified forum so you'll only be out a few bucks.
Pete