There wasn't a hope of me sleeping tonight without knowing whether or not the top piece was going to line up with the bottom of the hull so I wiped off the crud and started fitting the main pieces of the bottom hull to th etop bit.
And was pleasantly surprised!! Not more than half a millimeter out and maybe half a degree on an angle or two!!! Kaaaacchiing!!
Really got lucky and this will save me a whole shedload of frustration!
I really like the sports car look of this tank and am really hoping the rest doesnt prove problematic!
P