[Ant]

Thanks David, and I would emagine your tanks are very good, 40'S a bit big, 15-18 imperial gallons will do, I am trying to save a bit of cash building the tank myself, and plus having the fun or trouble of doing it, but sometimes thing turn out cheaper if I had bought in the first place!

Fred your right it shouldn't make any difference the 14Ibs with all the neddies under the hood!

Mr Fixit:

Thats a thought I can get the foam, make the top for access, the next question how does the bladder work?
Also you mention the bung, I assume that is to let air in out, like plumb a hose into it and run up with a coil in it for an air bleed?
I could do that in the filler neck, as I am running a seal lockable cap inside the aston roller cap. One further thing I will be running a baffle system similar to ERA drawing with the hinge gates and fore and aft baffle, so as mentioned not sure how the bladder works!

Cheers Ant