Which gas tank for under bed?

[RShaips]

I need to buy a gas tank for the back of my truck. I have read everything I can find in previous posts. My truck is a lifted LB 4WD so hanging low is not a problem, but you will be able to see it easily. Anyway I am inclined to buy a stainless steel tank off of EBAY for about $500.00 shipped but really don't want to spend that much. I don't think I like the plastic Blazer tanks. How are the metal Blazer tanks, I am going to fill the tank thru the bed floor. The side fill on the tanks don't look like they would be an easy bed fill application even though they say they can be run that way. Any suggestions would be appreciated. Thanks