Hey midfielder, l will send you a pvt message too. I will give you my basic profile first as this may help.
OK, so i had never done a tour before of any kind. I had, and still do, lots of etapes, sportives, races and team triathlons, so had/have a good level of fitness. BUT had never ridden as a group like this. I'm not generally a social person, so having to meet a group of 12, including myself, was daunting. They were mostly Americans yes, me being British and another from the NL. I never felt an outsider with the group because of where i was from. (I can go in to more detail in my pvt message). We had two team leaders who were pretty much always happy, positive and supportive especially when my aunt died whilst I was out there. They work hard mind you, and take it in turns to drive the van and ride. I got on well with them and have organised a ride down through the length of France with one of them and a few of the yanks.
I guess you mean 50-60 a day

Yes I think that was the average we were doing. Some days were 80something in high winds and heat. Not much fun. The thing is with it, it's not like cycling down to Brighton where if you feel tired, you can finish early and get the train back home. With this, you have to get from A-B, no matter how long it takes. I guess part of that is the mental thing and the challenge. Of course, if you were on your last legs then yes you can hop in the van, but itis not encouraged. I stopped and took lots of photos, so you can do that and it is not frowned upon. A sad thing about it is, if you are out there for 3months, you kinda get used to it all after a while, so you stop stopping at the historical road signs, or miss out on the museums. Then you have your blog to write, laundry to do and cooking chores, so sometimes you do feel like you have to get in to camp at a good time. I preferred to stop and smell the roses as it was such a big thing for me to do. I hit 40 and this was my midlife crises so to speak. On days off too you can relax and do your own thing. Again that can be taken up with laundry, blogs and just resting. There are some things I regret when I was out there, that I didn't do more things. But after you have ridden 65miles in a headwind in over 100degrees of heat, sometimes you just dont want to lol.
I think ACA do one around that way, maybe more, best to check out their site. Hope that all helps. Any more info I can give you i am happy to