Hi sa_lux
Hiluxes are Hiluxes even in Europe
Paxi:
For sand driving you will "need" a snorkel to keep most of the dust away from the intake.
Concerning the cabin. Do you plan to build a cabin instead of the bed of on top of the load bed?
There are some serious guys in Germany that might help you in that.
You will have some extra load on the rear axle so you might have to change suspension leafs.
What kind of Hilux do you want to buy? The new model? There are very few "old" Xtra Cabs left at the dealers, DC will be some more left. A single cab is nice to have but there is very few space to put some stuff or get the seats in a resting position.
Will be keen on photos
Tim