I bought an used Epic 5 but it's pickups changed to Bartolini.  
Looking to put them back,MXY56.
Contact me if you have MXY56 for sale.  
 
Lefty

Does it have the original electronics inside, or were those swapped as well?  You may not gain much swapping the pickups if it has Bartolini guts as well, maybe worth a discussion, or at least asking Mica.
 
Also, the factory has occasional stocks of cosmetic blemished pickups and may be able to help you get a set in an economical fashion.
 
-bob

When I bought it ,doesn't have original circuit.
But I have it now.
 
I already asked this matter to Mica.
But I didn't get reply.

Hi Hironobu, welcome to the board.  I hope you find some pickups for your bass.  Mica gets a lot of email; you may want to try again.

I already sold this Epic5.  
(I have another Epic 5)
 
So,I don't need pick ups already.
 
Thanks!!