You absolutely CAN fabricate them with torch (or makeshift forge) and hammer! That's how people used to do it. Until I did my trunnion caps, I'd never done it before. I also had never made my own bolts before, but now one of my most wanted tools is a set of taps and dies. With anything, until you try, it's a new experience and can be somewhat intimidating. If you have any desire to try it, I'd say do so. If you want to pay someone, then Dom certainly would be able to do it.
