In 2000 International Supply Company supplied a Caterpillar generator with an enclosure and 3000 gallon subbase tanks.  Here is the information off of the data plate.  

MFG Date 1-6-2000
S/N WO 7672
Fuel Tank 3000 Gallons
Rupture Basin Cap 3300 gallons

Here is what I need.
A quote for a new subbase tank identical to the one supplied
The drawing of the existing enclosure package, including enclosure, fuel tank and generator 

thank you 