I am giving myself c12 days to do the 1,000kms or so and the route is simple and probably familiar to many here (not me, though): Portsmouth to Caen to Angers on the Loire, along the Loire to Orleans, south along upper Loire, across to the Rhone at around Vienne, and down.
I want to stop off and see things (seen a bit of the Loire by car: Saumur, Chenonceaux, Chinon, Fontevrault), and overnight more or less where I feel like, hence camping. Primarily because I don't really like restaurant food anymore, I will take a Trangia.
Nonetheless, I am aiming at not more than 12ks of weight. I bought a lightweight tent and mat in the summer, and could probably manage with a light sleeping bag. Trangia, tent, sleeping bag, mat, tarp are probably 5kgs, plus 1.6kgs for the Ortleib panniers. Then minimal clothes, a lock, bits and fluids.
I can ask one of the others taking part coming to Provence by car to bring a bag of stuff, with things like lighter tyres, spd shoes, pedals and more clothes.
If the total weight goes above 12kgs, then option one is probably best. But if I can bring it all in at <12kgs, then any of these could do the job.
Although I like all these bikes, they are modest and have cost little to put together. The only one I bought new is the Trek 1.7 and that was 12 years ago.
If I have to use a heavy bike, I could hire a road bike for the week when I got there (although I would be sceptical about quality and potential exaggerated cost).

1/ If I did hire a bike on arrival, then I could go on my gash long distance tourer, a converted steel Marin MTB with Sputnik wheels and decent components. The upside is that it would be comfortable along unpaved roads (La Velo Francette for eg), carry loads of weight and be pretty robust. Downside is that it weighs 14kgs even without additional weight and is slow. 100kms in a day is an ask. I always said to myself that if I took along a Trangia, this bike would have to carry it. It would not be possible to ride this bike with the club riders as I would be far too slow. Gearing is friction downtube (Suntour, my favourites): 7x3: 42, 34, 24.

2/ Then there is this, my lightweight steel Belgian Diamant ladies tourer, with its extremely convenient step-through girls' frame. I toured on this in the summer to Hants, Dorset Wiltshire and then Cardiff to Tenby in Pembrokeshire and it was ideal. The frame had never been made up until I put it together in the summer, and it is pretty high quality. But with its long wheel base and bosses, it must have been for touring. Here it is with about 14kgs of clutter - heavy tent, heavy sleeping bag, other stuff. It would be better around the 12kgs mark. When I finally arrived, I could whip off the rack and replace the tyres with lighter ones. This bike could actually be viable and fun riding with the club and I would certainly be able to keep up with the slower riders. Gearing is friction downtube (Suntour): 8x3, 48,38,28.

3/ Of course, I could just use my commuter, a Carlton mixte 1970s tourer. Advantage is: all set up and ready to go, even with mudguards. I am sure it would manage just fine if I got on it and set off right now. But I would stuggle to keep up with the other clube riders once there, so I would have to hire something faster (although with its gearing I should get up anything). In other words, the same drawback as the Marin tourer, and this frame is not great with much weight. The tyres are x32mm, but I have Schwalbe Marathons x35mm if prefered. Gearing is friction downtube (Suntour): 7x3, 42, 32, 22.

4/ Or I could use my winter road bike, a 10-speed Trek triple alloy / carbon fork. This is an old pic and I have replaced the (heavy) wheels with my own build 36-spoke Mavic Pros on Ultegra. It has fittings for mudguards and rack, as you can see. It is the lightest of these bikes at 10.3ks, and the weakest. It now has 28x700 tyres. This bike would be fine for the club riding around Provence, unless I overload it and it breaks on the way. Gearing is STI: 50,39,30.
