Le Quack:
If you look at my webpage, you will notice that I doubled with a Ti-Sapph laser, which is a pulsed 795nm laser. Therefore, you should be able to grow your own KDP crystal and double it in a 808nm laser if you have a powerful enough laser.
Wolfman 29:
The best reference for you to...
I have also successfully frequency doubled with a home-grown KDP crystal with a titanium-sapphire pulsed laser (800mW).
Here is a blog I made about growing the crystal and getting the setup to work: