fuel tank/body clearance

So... I'm now starting to plumb up my fuel tank -- I've got a line on a good deal with an Aeromotive Stealth fuel pump - but I'm curious about clearance between the fuel tank and the body.

It looks like the Aeromotive tank has -6AN lines (female) out - so at minimum, I'd be looking at putting in a MTM union, then a curved 90 in AN lines .... is there enough room for this? My local parts jobber likes to scream bloody murder when it comes to returns....

Stock pick up doesn't exist anymore - as previous to this it was an external pump.

Has anyone plumbed up a system like this? what did you use?