I have bought a 1969 RR and need help with some of the numbers on the tag. I managed to decode most of it. Any help is appreciated.

25153 160133 9A156698
915 592 603
1T 7X N96
T3 T3 M6T T7 V21
RM23 E63 D21 A28 066126

Also is the T3 paint code a popular color. I am restoring it so should I keep it the same T3 or change it to a color I like better which is the T5?

Thank you for the input!
P.R.