Agreed, that is why I was asking. The only certain way to significantly decrease the cost would be to DIY. Arbor presses are mass produced and cheap so that part is easy, whereas the dies are small volume boutique items so that’s where DIY comes in if you do your own machining or have a close friend who would be willing to do it.
Otherwise the potential for cutting cost will be more modest like sourcing through overseas channels, accepting whatever risk is associated with it. Or you could search and search and maybe find someone wanting to sell their used setup for cheap.
Hopefully someone else will chime in.