Well I went ahead and bought some Mogami quad mic W2893, and a 3.5mm Neutrik from Redco.
I think I'll go ahead and recable here pretty soon. I'd like to make the cable all deluxe like I see in the pictures, but I'll be happy with just the wire cladding and a new connector. I use a 1/4 > 3.5mm 100% of the time and it actually has gotten me in trouble a couple of times (Loose Macbook Pro connecter <//3) so this will be good. The Grado SR125 now have no y junction but just 4 spliced wires with electrical tape. So its kinda a gamble, but it'll probably be an upgrade.