Best Gasifier? Plans, Kits or Products?

I've been planning on putting a gasifier on our farm truck for some time and also building one for powering a standby generator for the house. I was wondering if anyone has had any real life with the kits, plans and or products out there and if any one would like to compare and contrast. Below is a let I compiled. I don't think this has been discussed here yet. So here goes!


GEK
The gasifier Experimental Kit is a gasifier company that started up literally six months after I started studying gasifiers. I've watched them grow and have sentimental attachment to them.
http://www.gekgasifier.com/products/product-overview

Vulcan
Totally new players. Looks simple enough and the price is good when compared with the others. Need input!
http://www.vulcangasifier.com/

LEAF
These guys are new as well but they look really slick and they are priced decently. Again, looking for some real experience and input!!
http://www.leafgenerator.com/

Victory Gas Works - But unless someone can say something REALLY awesome bout these guys that would justify gasifying $38k, I don't much consider them an option. By the way, I asked a similar q on the DOW forums and didn't get much response except how good the Victory gasifier is so, maybe it really IS so good but the price, the price!!
www.gasifier.wpengine.com

Arvid Olsons International Supply Co's units
Beaver Energy plan books


Herb's Welding and Machine Shop (Herb Hartman the woogassing Caddy driver)


TEI in SW Missouri offere WK formed shell kits


Sean Frenches Gasification Services for custom builds for vehicle and generators

DOW Chris Seymours Superior Gasificartion "Elit"

www.superiorgasification.com

Lawrence Garringer at Garriger Gasifiers:

www.garringergasifier.com
 sales@garringergasifier.com

And last BUT NOT LEAST the DOW official "Keith" gasifier.
www.driveonwood.com

Any real life experience would be really appreciated. I have two basic applications, as I said, a farm truck and a generator for backup. I want to build two gasifiers for my farm in siberia and my parents want to buy two gasifiers for similar purposes in Idaho, USA, so any input would be great.

There was a guy at Backer's Creek in Mansfield Mo that drove there with a truck running on wood, he said it did 65 down the road just fine and it takes 2 lbs to go a mile I believe he said. I wanted to talk to him but didn't get a chance too

I am friends on Facebook with the owner of Vulcan Gasifier. He is a great guy and completely driven about his product line. I guess for biased and trust reasons, not to mention price and quality I would recommend the Vulcan Gasifier line of products.