3ft tank UK

[sunflower]

I am looking to get a friend for my gerbil whose sister passed away at the start of the month. I would like to get a rescue gerbil so have contacted the main local small animal rescue near me. They have said that in order to be considered to adopt I need to have a tank 3ft by 1ft by 1ft. My tank is currently about 2 1/2 ft wide but higher than their specifications.
I am really struggling to find the right tank to meet their specifications whilst also being aware of what my gerbil is like. She is a complete pickle and so I would really like a shelf of some description in there to put a sand bath and wheel. I just know if there was a freestanding wheel in her bedding she would undermine it with her burrowing and exploration!
The one tank I have found that I liked want basically the cost of the tank again to deliver to where I live, which is not really practical right now.
Any hints/tips of good 3ft cages available in the UK would be greatly appreciated.

[LilyandDaisy]

Junglepets can make tanks in any size. You can have them made with fitted glass shelves although personally I find wooden platforms work better. A fixed glass shelf can limit how you can set up the tank.

www.junglepets.co.uk/glass-small-animal-housing-273-c.asp

[Markpd]

No 2nd hand tanks on ebay, Facebook, Gumtree or shpock.com? (etc)

Btw, what does "She is a complete pickle" mean? lol