Man, that RGB CUBE looks FANTASTIC!!!!!! It's in such pristine shape. You should be able to sell THAT cube, in the condition it's in, in NO time at all. I'll bet you get a GOOD PRICE for it too!!! : ;D
How about a 1.2 or 1.5W (I cant remember which...) c-mount pump diode? Mounted on a solid chunk of copper already (obviously you can remove it from the copper if you want...) works great.