Delphinus,
Do you mean, use snips then press the edge flat or use a shear? Just trying to clarify is all.
A shear would only be useful for the outside edges. Any cut outs would have to be done by hand and because of the design even a notcher would be of limited use. If one was really good they could be made with a zip disk, some kind of backer and deburring tool... but you'd have WAY more patience than I.
If it was a job at the shop, for sure! For home DIY... snips would be good enough for *me*
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So far as getting a shop to do it, I don't know what going rate out there is but I get charged out at $95/hour for fab work... (and that's cheap, the shop down the road charges $120/h) Assuming the fab is a one of (or a small number anyway), a store bought one would look dirt cheap after that bill!
Honestly the only way I could see these being produced cheaply is by hand (diy) or mass production with a Punch Press. Lol! I seem to be fresh out of those... Anyone got one sitting in a corner of their garage? Maybe with the right die's sitting around too?
j/k
Chris