Building rear tank - what do I need?

[Orange]

OK, so I got my measurements and am having my aluminum tank built.
Basically the same as any other metal tank out there.
My only thing is I want to make sure I do everything right.

I have my sending unit on the way (universal 5 hole pattern 0-90 ohm).
I have my location for the filler figured out. ( http://www.classicheartbeat.com/mark...t_gas_door.htm )
I will be using a vent at the filler (see above link) - do I need any other venting?
One question I have - it is apparently against federal regulations to use a bottom mounted pickup (saw it today here: http://www.tanksinc.com/index.cfm/pa...prod/prd83.htm)
So, how do I go about doing that? (Using a mechanical pump of course). And, where do I get what I need.
What else do I need?

Thanks.

DLB