Import numbered image sequence, want to export same numbering

I was given an entire movie's video as one super long cineon sequence (yikes, gigantic files), when I only needed to work on specific sequences.

I saved myself the headache by taking chunks of the sequence I needed to work on and pasted them into their own folders. So in one folder might contain all the files from movie_(20100).dpx to movie_(25112).dpx.

I want to be able to render these out of AE as the same exact cineon sequence, with the same exact numbers. So if I created a sequence using movie_20100 to 25112, the cineon sequence I export also has numbers starting at 20100 and ending at 25112.

How do I go about doing that? I don't have much time to experiment, and my clients need this to be as brainless as possible; they basically want to be able to overwrite what they gave me with what I give them, and have it line up and sync perfectly.