B17G's NMF ?

[Alex Smart]

Hello,
Am seeking information on the NMF B17G a/c.
I understand that the production run at Boeing, ended the camouflage on the a/c from B17G -35 - BO with 42-32044 being the first NMF a/c, is this correct ?
Also
At Dallas did the camouflage a/c end with the start of B17G -35-DL 42-106984 being the first NMF a/c ?
And
At Vega did the NMF a/c begin with B17G-20-VE 42-97635, during or at the end of the production ?
I assume that ALL B17's after these batches were NMF ?

Thanks
Alex