Have a pretty good start on one in CR. I'm presently in Florida. Planning on running my new sawmill build with a 20 HP Honda that refuses to run on gasoline. More info and build threads when I figure out, again, how to post images.
Gasifier is copy of the best DIY I can find on youtube. Guy even has it automatically operated.
Check out flash001usa on youtube. Starts at video #18 for the complete DIY instructions.