DBW and cruise control

[sjfiore]

Have a project 52 Chevy Fleetline using a L76 and 6L80E
from a 2009 Pontiac G8 GT
L76 has the DOD function deleted and ECM will be reflashed
My question is what will I need to do to have cruise control
function.
Have the DBW pedal from car and plan on using a Ididit
steering column with cruise control stalk
If I am right I believe the throttle control function
is handled by the E38 ECM so I assume that I need a
way to connect the cruise control signal from the steering column
to ECM / throttle and brake pedal
Thanks
Steve

[400ss]

I think the bcm is the one that controls that. Bcm talk to the ecm using canbus