I posted a week or so ago and have been successful based on the response I
got. I have a new but similar question that i am trying to solve for with
another layer of complexity:
I Know that it took 6980 hrs to produce the volume below.

ND take twice as long as R and R takes twice as long as M to do. (4T, 2T, T)
I also know that:
based on Coll Complex 1 takes less time then 2 and 2 takes less time then 3
and 3 takes less time then 4.
I also know that:
ND1 1 takes less time then ND 2 which takes less time then 3
same with R items and M items

based on the volume of each type, how long does each type take? can solver
do this?

ND - 1 ND - 2 ND - 3
Coll Complex 1 18 9 9
Coll Complex 2 9 5 5
Coll Complex 3 9 5 5
Coll Complex 4 15 7 7

RD 1 RD 2 RD 3
Coll Complex 1 30 15 15
Coll Complex 2 5 3 3
Coll Complex 3 10 5 5
Coll Complex 4 12 6 6

M 1 M 2 M 3
Coll Complex 1 37 19 19
Coll Complex 2 7 3 3
Coll Complex 3 12 6 6
Coll Complex 4 15 7 7