there is, and it has a renforced floor as it was used for carrying wheel chairs before I got it and has 4 loops, but its to the front.
I would really like it at the back, also these loops where designed for securing small weights compared to 125litres of water so dont know how good they would be.

An ideal situation for me would get it secured to the back, then I could use the side doors which are convient and also still have use of the seats if I come to need them.
The securing the tank bit is the bit that puts me off alittle to be honest, but if I could get my mechnic to sort out the securing fixings. Where could I buy these. is there kits out there you can buy?
Where can you buy the cages I here people talking about?
thank for your help guys.