Sorry about your divorce but congrats on your new job!
I have crossed the country West to East solo twice, once the TransAm and then the Northern Tier.
Both trips I had a rest day (occasionally 2) every 7-10 days. The first, I averaged 58 miles a day when I was 17. The second trip (part of a 9,000 mile trip) I averaged 68 miles. This ride had 38 centuries as I had to hussle to beat the Maine winter and be able to get south before the snow hit (I don't recommend starting from Washington to Maine in mid-August).
I can say that while my average was only 10 miles more per day (45 minutes of riding on average), it was a lot more work do to it being a average. I had to do almost about 75-80 miles per riding day just to increase that 10 miles on average. I did this in early 20s and I was in really good shape (more so than now
). There is no way I would enjoy doing multiple century days in a row while touring now (early 40s).
I have subsequently determined that, for me, I stop around 60-75 miles per day. I have known numerous riders who after 3-4 weeks of no rest day riding, phyically get sick. They are usually strong enough but just get a bad flu or somthing. I am not trying to discourage you as there have been plenty of speed riders who have done it sucessfully.
Since you are doing it cheap, you will probably be camping (or finding a "camp") and may be cooking. All of this adds to the time. Heck, even doing laundry every 3-4 days takes up 2 hours and small town laundrymats often close by 8pm or 9pm. If you are going to stop and smell the roses, continuous high mileage days may be difficult and/or no fun after a while.
If you able to go slower and take more time, I would recommend that. After all, what happens if you come up on a gorgeous lady riding the same direction but she only doing an average of 60
? But if the choice is an average of 70 a day versus no trip, I'd probably go
. Hope this helps and I wish you a great trip!
Happy trails and may the wind be at your back!