Running stock Marlin standard firmware on a FLSun Delta KL.

I ran through the procedure and it generated the following output. Question is .. what exactly do I do with those M codes? Can I put those into Marlin somehow or do they need to be in the startup gcode?

It gave me New endstop corrections, Delta radius and tower position angle corrections.

Also:
M665 R102.04 L218.00
M666 X-2.49 Y0.00 Z-0.12

I know what to do with the new homed height. What do I do with the other parameters and the M codes?

I think you send those manually to the printer, then save the configuration to EEPROM/Flash (M500)