How to Megasquirt your 3G Hemi

Is the MS3 Pro worth the extra money? Im kinda thinkin since I may have a harness to pilage, this would save so much $$$$. I can solder fine and I can wire. Only EFI experience I have is with an EZ EFI. And it liked a 14.0 idle, 13.5 cruise and about 12.3-12.5 WFO. You can aslo datalog with Ms3x and Pro no?