There's a bit of a flaw in the concepts that a) this is meant to be a series of everyday-use decks, but at the same time b) the cheapest among them is $25, the most costly being $45 and all four available for $150, with no discount for this combination or any of the others being offered.
"Modern day 300gsm coated playing card stock" is about the same quality as mass-produced Bicycle Rider Backs. Not impressive by far, especially at those prices.
As far as getting the rights - I'm inclined to think that Piatnik would have some degree of exclusivity in regard to reprinting the cards, especially since Piatnik is printing the collector's editions of the same decks. I can't see them willingly accepting a competitor introducing a lower-quality, less-expensive reproduction in the marketplace without making a stink about it - and they probably have the contractual rights all tied up in a bow, courtesy of their contract attorneys.
I'm going to move this topic to the Cellar - while it is a repro, it's a repro of an antique deck.
In other words, this project has several tough rows to hoe, perhaps even a few too many.