I assume you're talking about corner loads correct?
Take a look at kitchenscales.com. I recently purchased a set from them. No issues except 2brakes of them came with batteries that were nearly dead even though the circuit was blocked. No big deal though. I wouldn't be too surprised if you could find something cheaper but mine seem pretty nice. Make sure you get something that has enough capacity.
"Nothing in the world can take the place of persistence. Talent will not; nothing is more common than unsuccessful men with talent. "