Athearn SD45T-2 Sound & LED Upgrade; Pt. 1

I have an older Athearn Southern Pacific SD45T-2 with an old Digitrax DCC non-sound decoder.
I'm having the loco upgraded with the following:
1. Sound
2. ESU LokSound 5 Decoder.
3. Led Lights; SP Gyra Light; SP Red Warning Light; Number Boards.
The loco is over 15 years old. Previously, when the loco was new, I added a Digitrax non-sound decoder and had the model professionally weathered. This is a very nice model and I want to have it operate like my other sound equipped locos.