Looks the goods, carzee!
When you take a knife to those water jerrys, you get a surprise seeing how thick they are. I think I will use some 25mm webbing to strap it in place. I am using a neoprene pad under it.
Once again, no drilling or permanent mods for the plastic console, in case a better idea comes along in the future.
Using an old steel jerry there would have meant some down sides - more prep work and it would have a smell.