Try here for tanks:
http://www.basspro.com/

Look for below deck "Tempo" replacement tanks; come with sending unit for fuel gauge, fuel pickup and openings for fill & vent. Prices are reasonable (right around a hundred bucks).

I would hope that you are planning to run HIH, at least for your supply. In any case, anything less than aluminum for your main wvo fuel line would be a mistake. Try here for tubing:

http://www.speedwaymotors.com/

I am certain that you will be suprised at how cheap the aluminum tubing is.

Good luck,
Jim