Sohrabi (21pts)
Vrecer (14 pts)
Arriagada (12 pts)
Gazvoda (11 pts)
Lagab (11 pts)
Bagdonas (10 pts)
Teklehaimanot (10 pts)
Novikov (9 pts)
Ubeto (9 pts)
Assuming that your calculations are correct (and as I don't understand the system, I'm going to do that), these are the guys currently on Conti teams or lower who make the top 75 riders. An existing World Tour team worried about keeping its status or an aspiring World Tour team could do a lot worse than picking up some of these guys.
Some of them probably aren't a serious option. Arriagada is fighting a doping case, for instance. Others, like Sohrabi, might have visa difficulties or might be reluctant to move to Europe. Novikov is on the Katusha development squad so might be destined to move up there. And the top three are the wrong side of 30, while Gazvoda in fourth will be by next season. But even taking that into account, you are right that a clever team could pick up a lot of points (and a lot of talent) on the cheap.
As resident one man forum Gediminas Bagdonas fan club, I feel obliged to point out to the many World Tour DS's who no doubt hang on my every word, that the guy is 25, has been winning a lot, brings a national champions jersey and a whopping 10 pts! Teklehaimanot, who also brings 10 pts and a record of winning hand over fist at a lower level, would also surely bring some extra publicity.