Is there any way to print in Metal using a RepRap?

[Compro01]

I do not see a reason why we cant use this for SLS.

I do. I expect you're going to need about a thousand times more juice. The laser in that thing is 300 milliwatts. The lasers used in current metal SLS/DMLS/SLM printers are in the 300-400 Watt range.