My job here is only to tease you and get your hopes up, not offer "answers". :P
I'd direct your inquiries to email@example.com
All I can say is that DJ and Josh are incredible people to work with, and will likely try to accommodate anybody that asks for anything nicely enough.
I haven't weighed the lid, I will today, don't have my scales on hand, but it feels as light or lighter than the regular lid. I'm sure it would be fractions as heavy as a Ti Lid. It seems very strong, one of the major advantages I see of having one of us that can do CF work is that he's likely willing to make it thinner than most shops would be, but it's definitely thick enough. The fit is also very snug, in fact I'll probably have to soften it just a little.
Also, I have to say, the workmanship on the pack, sewing wise, etc. is top notch. I'll post some initial review type info after I get a chance to get out with it soon. I'll be using it along with a bunch of other things for a heavy weight(by our standards, obviously) winter luxury trip. As soon as I figure out which shoes to buy. =\