James, I hope you enjoy, sounds like a great setup!
I too just ordered a VPI Signature with SDS and JMW 3D-10 arm. (way upgrade to the Marantz TT-42)
Went for the Ortofon 2M Black as my only phono preamp is part of my Arcam FMJ A19 Integrated. It matches the 5mV sensitivity and 47 kOhm impedence specs so Im hoping it all works out. Is there anything to be aware of for this setup? Its driving KEF Q900s with powered Q400 sub.
Thanks!
Joe