Tricky specs to be followed...help needed

Hi,

I'm going to send out a documentary I have just edited with FCPX. it was my first "real" experience with this amazing software...

I'm going to submit it to a docufestival which ask for a specific type of format...it seems a little tricky to me so I'm asking for you help: which steps I have to follow in order to comply with its standards?

These are the specs:
DCP (2K/4K).

all DCPs to be in XYZ
colorspace encoded in JPEG2000

Thank you!