Tech help: SRAM 10sp pulley cage swap

[saintruggler]

I have a medium cage SRAM XO 10sp rear derailleur in excellent shape. I really want to expand my rear cassette range without buying a new mech.

Does anyone know if it's possible to swap the pulley cage assembly on my medium SRAM XO derailleur with a long-cage version?

Bonus points if you've done it yourself and/or have photos to share.

Even more bonus points if you know where I could acquire a long-cage assembly for this older gen mech. My jockey wheels are in great shape, as mine was lightly used. I just desire the longer cage capacity.

Let me know!