floor jack?

I have one of their small 3 ton aluminum jacks. Works good. But like any jack, they are made to lift, not support.
I have plenty of jack stands! I am always tempted to look for bargain, but a farm sale is the likely place. but I hat driving 340-40 min to get there and wait hours to bid on something that somebody else thinks is worth twice what I think! ha
craigs list? I do not like getting screwed so I "nicely" try to tell the seller IF they sell me a piece of S*** from him, I will be back and it won't be a nice thing. so ,... many times they get "nervouis" and tell me I don't want it!! ha funny how that works?
I will try HF!