So it seems that without doubt you would each be allowed: one 28x18x13 and two 22x14x9 and one garment bag, weighing a total of 130lbs for each person (two * 23kg + two * 7kg).

So three of you will have 12 bags weighing 400lbs.

How on earth are you going to move around on the ground? Are you renting a truck?

Clearly you will need to do some laundry at some point in 33 days. But I have just quite happily done a 10 day round-the-world trip mixing business and pleasure on a single 22*14*9 carry on, which contained all the clothing I needed, plus my laptop (cables, etc.) and reading material. OK, so it weighed a bit more than 7kg, but I had no problem from any check-in staff anywhere.

[One of these, by the way: http://www.redoxx.com/catalog/carry-...-air-boss.html Highly Recommended provided that you have the shoulders to carry the weight.]