For a '80s-'90s bird as your friend flew, I would go with the helo drab green with black cockpit and wire cutters, toilet bowl exhaust, heat shields, etc., as shown above. You can get the Fireball Modelworks ASE (Aircraft Survivability Equipment) set that includes all the extra parts an '80s - '90s bird most likely had on it. The 1/32 set fits on the Dragon 1/35 kit just fine. I used it on my WSMR SAR bird.
I brought this paint... Model Master Aircraft International Black.
As to the paint you bought, are you sure it isn't Aircraft Interior Black? It is used on cockpit interiors in concert with flat black and saitn black to give some definition between flat panels and black plastic gauges and such. It is less black than flat black and slightly more satin than flat.