You’ll spend a lot less time an burn a lot less fuel just drawing out the reins a little, shaping on the jaws and putting a rivet in them,
then you will starting from scratch with 3/4” or 1” stock an forging them out with no prior experience, so yes I’d say they are worth the ten or twelve bucks apiece,
you don’t need 40 different sets of tongs just starting out, a handful of basic ones, an then you can use them to help you build the others as you learn!
i only suggest kens because you mentioned possibly buying tongs an they are relatively cheap,