Oh yeah, you're right i forgot to mention i based this off what I saw in vanshnookenraggen's site lol. Since my version of this is just a short connection, kinda like a brooklyn version of the 21 st connection in queens, it shouldnt cost too much, even with inflated prices. I do think this could be worth it since with just a short tunnel, the fulton st line and the rockaways can gain a lot better service than what they have right now.