Help with Saturn Chassis Back End

[andysredmini]

I hopefully have sorted the rear end for the mx5 based chassis. Its all tacked or clamped but before i fully weld it can anyone confirm that the dimensions i have are correct.
http://bamaroadster.blogspot.com/201...imensions.html

Also has anyone got any measurements for the mx5 based fuel tank. i have access to the tig welder at work for a while and would like to have a go at building one. i wouldn't know where to start measurement wise as i have no body work or knowledge of what else is in that area of the car.

Many thanks

Andy