Here is a link to some photos of my fuel tank swop, http://s222.photobucket.com/albums/dd113/n...%20replacement/
When i bought my Bobtail rangie the original tank was in the buck and took up all the space, so have replaced it with this plastic boat fuel tank
only cost £30! is 33ltr capacity and has three connections (one pickup and two vents) I have used one of the vents for the fuel return line and the other as a raised breather pipe fitted with a one way valve.
This tank also has a large inspection pannel to allow access into the tank (ive filled mine with Fuel tank foam) and also there is a smaller (Red) plate that can be removed to fit a fuel level sensor.
I was worried that it tank wouldn't hold enough fuel for a full day of offroading but i've not had any problems yet. all in all i'm well happy with the end result, Gives me plenty of room for moving Rad, batteries, etc into the buck. A good cheep alternative to an ally tank for those on a budget.
Chris
PS Also had no problems with its MOT last month!