For what those Emmons cost, I am not sure I'd trust myself with the repair ;-)
This is for the contraband single cutaway. Some time ago I did some taking-apart-and-testing, and my scientific mind is not convinced that there is any real difference between the CF pots that come with the kit and Bourns other than the splines and the size of the shaft. The rest of the parts are literally interchangeable. From testing a bunch of both with a ohms meter I found more variation in the CF's, and more consistency in the Bourns, but they were all well within the +/- 20% spec that Bourns advertises. I would not be surprised if they all come out of the same factory, and Bourns just does a bit more quality control on the back end... But...
...I always change them out for CTS or Bourns anyway. Considering the amount of work to put them in, and the low cost to get name brand pots, why take a chance? Also I found an Alpha push pull with the right ohms rating in by bag-o-pots, and they will fit the kit knobs...