I am also looking for the same thing in the same city. Preferably a local one. For me its Reison' de' eitre would be water crossings. But this whole talk of waterproofing the gear box and axel and fuel pump and what not.
Its kinda disconcerting. Reason why I want one. I wiped out a diesel engine.. like totally.. While driving in the rain. (Nissan Sunny.) Stranded in the dark... late night.. me and my female family member.. water all around..
its being a decade but that incident still scares me.. And I am looking at an 87 Pajero with Auto locking hubs.. Once the requisite checks are done. I will try and procure a snorkel.
If I can find the darned thing.. and 'if' I can afford it that is.