led spot support

Having recessed spots at home, those outside are completely oxidized, they were installed two years ago.
Seeking a solution to replace them and at the same time match them to the color of the coating, why not in 3D printing.
After some test, I took again the general dimensions of the spots which are sold in the trade.
the drilling diameter is 68mm
the spotlight contours can be used with led lamps because the temperature does not exceed 70 degrees.

Do not hesitate if you have modifications or improvements :)