One thing for the OP to consider. I assume that while you may not run a credit card balance you need a credit card to reserve and rent cars and for hotel (additional charges if the client is paying for the room). If your cc company(ies) get a whiff of you not having a permanent residence, they may very well cut your card off. Read some of the posts on FT and it is truly scary what some people have experienced (either rightly or wrongly).

My suggestion is since you travel five days a week and don't seem to have an issue with the location of your two day residence, find a locale that is dirt cheap while having a fairly viable airport nearby. TUS, OKC, JAS, MEM, LEX while maybe the most hip places would afford you a low cost of living but would not require driving hundreds of miles just to get onto a flight.