I have multiple Banu Defender/Vulcan/Corsair to Mercury SR CCUs available. I also have two hurricane to MSR Warbond CCUs, which only cost 5 bucks, so will save you 25 off to the price of the MSR. No Tali stuff though.
I think Cromwell may be correct. @Stevetank will probably have more info, he's my ship guru. But if I recall correctly, the reason I went Sentinel was because there was something about the armor/frame that wouldn't be transfer to other Harby frame.