1. Do not bother with the tripod. They are a terrible pain in the back, especially if you do not have a nice cozy rental car at your service(?). Also, depending on your shooting style, tripods have a very limited/-ing effect. (i.e. great for landscape, kind of a must for studio, but for travel and street photography a major drag!)
2. Do not buy the 70-200 2,8 for this purpose! Your 4,0 will do the job very well, and you'll be happy not having to carry the extra weight (which, again, will become troublesome when having no rental car)
3. Instead, do invest in the 17-40 (a good lens, and yes the 16-35 probably will be a smitten better, and blablabla, but your not going planning on selling your pics I recon?)
4. And if your budget is still intact, and he wife not too worried, go for a 50mm and USE IT! Everybody is always going on about their " nifty fifty" but I really wonder how many actually use it!?? It takes a lot of skill and guts to leave the handy zoom in the bag and limit yourself to shooting with a clasic 50 or 35 for that matter. Give it a try, and it (the lens) might surprise you...