Here is a US spec LC , looks like its the same generation as the one you posted, and as you can see, it looks pretty basic, sure, doesnt have a snorkel, but I am pretty sure you can buy one after market
http://en.wikipedia.org/wiki/Toyota_Land_Cruiser
As for the kits , the four door Hilux kits did make there way over here, why do you think that they came with LHD options, so the we could make them US spec if we wanted too, Sure, not all LHS might of stocked them, but they were here .
I will agree, we do miss out on a lot of vehicles, but a lot of that has to do with NHTSA that has and does prevent a lot of vehicles from coming over here