Rear quarter panel water bladders

[D4DPower Lurker Find all posts View Profile Close D4DPower]

My Facebook feed recently came up with an ad for 30litre flexible bladders that fit in the rear quarter panel of a 200 series.
i have been in contact with the vendor and they have never done prado ones, but if I send them a sketch they are happy to make them.
Before I go pulling the rear panels out, has anyone done this before, and if you have had your rear quarters off do you think there is enough space to make the exercise worthwhile?
thanks
Dave

*EDIT- Just realised how different these things are between year models. I have a 2012 GX- no 3rd row seats or AC unit back there. The bladder would most likely go into the drivers side as it looks like more space (passenger side has fuel filler).
Cheers

[foxclan Avid PP Poster! Find all posts View Profile Close foxclan]

I bought a Flexi Tank rear quarter 20 l bladder for the 03 GXL 120 series.
The kit came with all the fittings, for filling and outlet.
I did not end up fitting it to our vehicle as I was not willing to loose the side storage pocket.
This needed to be removed to allow for the bladder to be mounted and the filler neck to be fitted.
The concept is great, utilising other wise wasted space on those models not fitted with rear air conditioning.
Cheers Troy