Van and Removable Tank

Hello, hope you guys are still managing.

just a quick one, is there anyway you could setup a new installation with the tank and fittings to make it easily removable. I was thinking clips / heavy duty running along a runner (cargo plane) 

Then if I ever needed it for the space I could easily remove the tank etc?

I believe ionics sell a flat tank that can be removed designed for pick up trucks.Have a look at that one.

http://www.ionicsystems.com/product/portage-system/

I had a towbar fitted to my van & bought a trailer.