Don't mean to make you guys jealous or anything, but those factory mitsu jerry can holders that mount just above the rear door handle are all over the place down here in Iraq and Kuwait on all the Gen III Pajeros. I see about 30 of them a day just walking to and from places. It is a pretty cool setup.

I bought these: WEDCO

and they ran out of water cans b/c they are redesigning them to a new design different from the nato style. I liked and wanted the nato style, so I went this these that are shipped from overseas:

Here is the overseas provider's web site:
web page

Here is a distributor for them in the states:
web page

hope this helps.

I am mounting mine on the roof rack on their side in that mount that you can buy on expedition exchange (the first link). My rear door is too heavy already with a 35 x 12.5 spare tire
Scottie