hey sorry if this has been discussed already but i have dialup and it is taking forever to look at all of them after searching. But anyways, i was just wondering if there is anywhere that i can get a square gas tank that is around 1/4 to 1/2 gallon i would prefer plastic just because of weight but metal would also work. i would like for it to be square or rectangle so it can go up next to a small cooler that i have on my rack. i have searched ebay without much luck. thanks for any help.