Hello, my first post here. Looking to purchase a Chinese Laser Cutter that can do plastic and metal. 1390 looks like the size I want, cutting 1.5mm Stainless steel is fine. I have a bunch of quotes rolling in. I'm getting a little leery about what details I'm getting fed by different companies and am wondering if anyone has any experience on this front?

-Some are trying to sell me a 280W Yongli Laser
-Have one guy saying it can be done with 150W Reci with Oxygen assist. (though I see no oxygen bottle or hose near the machine)
-Some say it can't be done as the laser can't be turned down and will melt the edge of the acrylic to much if I try to cut that.
-One company says it can be done with straight 150W SWL laser with different head.

Any help would be appreciated. A smaller budget is involved in my decision.