Shit site, for shit boxes. Really, two legs? even four would be pushing it, especially for a grand. Just make a box. HDPE, find some metal piping, drill/weld holes into it, and then just fasten it on. Of course the frame plays a part but I'm assuming you know what it would look like/cost.
My other ride is your mom.
"Freedom leads to creativity." -weird guy at the beginning of hurricane season
no. you must have a scrap steel yard near you (google it if you dont know, because there probably is one). just go there and look around, i guarantee you will find what you're looking for for less than 100 total (including material for the legs). go in with a general idea of what you need and make sure to buy extra so you dont have to go back.