I doubt the dye version of the 7600 was any different, physically, than the pigment version. I suspect it was all software. So, if you use QuadToneRip, it's probably the same machine.
I've used pigments in Epson printers made for dyes with no problems.
My various dye experiments might be of help to you. Note that the Epson 4000 was one. That could be very close. These are the URLs of potential interest to you: