Post# 13 has a Bus Type inline heater. Had one on my 62 K10. It should be used for an hour before starting. Any more and you'll be melting snow off the hood. They had a reputation for catching fire. Mine never did. Loved that heater.
Deluxe Gauge dash, nice option.
Tow hooks are not original, but useful.
Locking hub Option, nice.
Aftermarket west coast mirrors, while retaining the small standard round mirror, second truck I've seen today equipped that way.
Paint 507 Brigade Blue?
Would like some pictures of the spotlight please!
Nice truck.
P.S. You need to give your headlight bezels their " Black Eyes". A "63" painted grill only detail.