From other posts I expect you to be taking a lot of gear with you to cover any situation that might come up. I use studio lights and battery packs when I'll be able to park close to where the location is. Having camera bodies, lenses, light modifiers, and lights can quickly become a lot of stuff to lug around. To simplify, and lighten the load, for further treks I limit myself to one bag that holds 3 lightstands, 2 folding softboxes, 2 - 64" umbrellas, 2 - 42" umbrellas, 4 flash, 1 commander, and batteries. Outdoors my most used accessories are a 42" reflector and a larger rectangular reflector. For outdoor macro shots a couple of small reflectors and possibly some diffusion material would be all I would take with me. How much equipment will you be able to carry on a photo tour and still remain mobile enough to feel that you were on a tour and not chained to one small area by the bulk of equipment? Are assistants being provided to carry your bags?
Perhaps the best thing to do would be to pack up the equipment you think you want to take on the tour and have a trial run in your neighbourhood or some other place close to home. To be honest for the last trip I was on almost all of the shots were done with just three lenses. 16-35, 24-70, and 70-200. 5D3 and 7D2 were the bodies used, mostly the 5D.