"the post production house is asking me to up-res to 2k uncompressed"
isn't this their job?
what are you asking them to do?
what was the 16mm telecined to?
my bet is Standard Def.
so the whole film will need a pretty good up-res,
and FCP is NOT the place to do that.
the FCP timeline can be set to a better upscale in the sequnce settings, video processing tab,
but there are better solutions.
based on what ive read the qualty ladder goes something like this:
- FCP timeline.
- plug-in used in FCP
- alternative software up-res
- hardware up-res
what would be ideal is if you could up-res the video
then re-combine with the stills, which may be a decent size.
then add all your graphics.
really the post house should be talking to you about this.
nick