I am going to use this as my opportunity to speak up for the Pro Km2 camp. First of all, do not settle for less, especially over a time
constraint. As it has already been pointed out, you will greatly regret the decision. The KM2 is not neccessarily the best tire, but it is an awsome tire.
After some "online research" I bought a set back in February for my Ranger. At the time, I was pretty happy with my purchase. These things were amazing on the pavement, extremely quiet and well mannered. Also, they somehow manage to do this without compramising what really matters in a tire like this, offroad performance. However, at the time I wasn't 100% confident in the true capabilities/limitations of this tire. In the 1500kms I put on them, I sort of went offroad twice, and it was mostly trail stuff, with some snow and mud in the mix.
Fortunatly, at the beginning of March, I was inadvertantly given the opportunity to put these tires through all kinds of paces in the Middle of the Mexican Sierra for a couple of months, with a company truck.... My daily commute can best be described as a pre-runners wet dream. I've used them on fast sandy flats, through muddy draws, and up some rediculously rocky, steep and dangerous mountain roads and they have not failed. I can say with confidence that these tires are tougher and more capable than 90% of their own market will ever need them to be. Even operating in the second most violent non-militarized region in the world, where your odds of being shot at are greater than those of it raining, I have not found a need for Kevlar lined sidewalls (for the MTR guys
Simply put, if you hold out for the Km2's you will not be dissapointed.