Ok...I"m not great at this, but no your dimensions are not right.
C- you only need 4..not 6
D...7/8" x 6/1/2"
E 7/8" x 9 1/2"
F 1 1/8" x 7 3/4"
G 1 1/8" x 12 1/2"
and I think that as it is...your dimensions are not 9 x 12 over all..but 12 x 12...now mind you...I have had only 1 cup of coffee. Just check it again to make sure....cause...I could easily be wrong!