I bought an Imperial Knights: Renegade box , using the instructions from games workshop and the color schemes from the imperial knight codex, I painted and converted the imperial to a Khorne Daemonkin Knight Errant.
I assembled the body and mounted it with a Thermal Cannon and a Reaper Chainsword and I chromed it with spray paint.
I used gold to paint the rest of the armor and assembled it on the body.
To make him a real Chaos Knight I mounted a herald on top of him and added o trophy rack on his back.
I assembled the body and mounted it with a Thermal Cannon and a Reaper Chainsword and I chromed it with spray paint.
I continued on the body with 2 coats of nuln oil, I added all the spikes and tentacles and painted all the details.
I used gold to paint the rest of the armor and assembled it on the body.
To make him a real Chaos Knight I mounted a herald on top of him and added o trophy rack on his back.