hello, i own a 100watt co2 laser and i was thinking to upgrade the machine to cut some thin metal with it. now dont know much what should i look for , any suggestion what to buy for an upgrade to replace the main head. how to install or retro fits to co2 laser machine. i know i will need to add oxygen or nitrogen to cut metal. can i use the same air-line to push in the gas or not??

the laser machine its a generic Chinese machine 1000x900mm , rdworks software , ruida 644 board, 100 watt tube, power supply output 40kv to laser tube.

thank you for any input.