Alright, I figured it out.. It's been a factory script that comes with Logic.
I used the MIDI to Plugin Parameters Script. Changed the Input to CC35 and the Target to CC65 Sustain.
That was exactly what I was looking for.
For clarity sake, the MIDI CC# for sustain is 64 (not 65)...
LogicPro 10.6.3, MainStage3.5.3
MBPro 17", Core2Duo, 8G, OSX 10.12.6
MacPro, Xeon 6Cores, 64GB, OSX 10.15.7
ULN8, MOTU MIDI TP-AV, C4, MCU Pro, KorgNano, Novation SLMkII
AAS, NI, Celemony, Spectrasonics, Korg, Arturia, etc...
PC, iPad3(V-Control & LogicRemote), AtariST(Notator SL), Several vintage gear