Moscode super it or audio research ph3 ???

Hi guys. i have a real clean all original NYAL moscode super it for my phono pre, and love it.. But it is my first and only tube pre. Question is..
1. Keep it as is or get a ARC ph-3?
2. Send it to George Kaye, put another $500.00 into the IT.
3. And then how will it compare in presence, soundstage, and sound to a stock ph-3?

Thanks for your help.
Zack