Can't help on the R 66 part, but I just had to share this story since it's similar to your upcoming event. In 2005 my Dad decided to sell his conversion van / motor home. I decided to list it on Ebay and had quite a few responses but no cash which is common. I had one guy write several time asking a lot of questions and he bid on it several times but the auction ended without meeting the reserve. He wrote again after it ended asking more questions and finally explained why he had so many questions. He was a young man who lived in London and was wanting to visit the US for about a year and he planned to buy a small motorhome to live in while here. After lots of Emails and several phone calls we made a verbal deal over the phone. I agreed to pick him up at the local airport so he could see the van and only if he liked it would he have to pay for it. I sort of figured if he got here he would almost have to buy it anyway. This is the van:
On arrival I took him over to look at it and he liked it but wanted a mechanic to look at it. I agreed but it was late in the day so I took him to a local motel for the night. I picked him up the next morning and took him and the van to a mechanic to inspect it and he was given the green light for a cross country tour in it so he asked me to take him to my Dads bank so he could pay for it of which we did. Now he had a roof over his head in the US although it was on wheels. He didn't want to leave for a few days since he wanted to make some plans and maybe visit Mexico while he was here. We offered to let him park next to my Dads house where he has hook ups for an RV so he stayed right there for a few days. The following day I took him to Progresso Mexico (a border town near us) for a visit. Here is a picture of him on the bridge when we were coming back into Texas:
It was funny because he had such a cool British accent, but while in Mexico he was speaking Spanish. Yea, I was impressed. Anyway after a couple of days he embarked on his cross country adventure. He spent about 11 months touring the US, finally ending up in Florida. His intentions were to ship anything he purchased along the way back to London and he had a friend in Florida that was going to sell the van for him after he left. It didn't work out as he planned, it seems he bought too many things (including a surf board in California) that the shipping was too expensive. He finally decided to leave all the purchases inside the van and he had the van and everything in it place in a contained and boated back to England. Said the cost wasn't much more than just shipping the stuff he bought. He kept the van for about 6 months and sold it in London and said he got more for it than he paid for it even with the exchange rate.
Although I was only with him for a few days I really enjoyed learning a little bit about London. Things like what a "meat market" is there vs. what it is here. The best part was watching the young girls stare at him, and then when he would talk to them they would melt....something about that accent. Even my wife said "OMG he's so cute". Yea whatever I told her. Now that I look at this picture, yea he was sort of a pretty boy.
Well enjoy your trip in our beautiful country...again!