Can someone help me with a laser build?

I have a Scifi lasers Arcane 2.0 which i broke years ago. I got something on the diode lens and it led the diode. I am wondering if someone would not mind rebuilding the laser for me. I would love to upgrade it to the 4.5w 465nm diode.
20170421_105857 by Alex Littig, on Flickr

Thanks