I don't agree with the statement about the stock brakelines being long enough, even if the imtermediate supports are removed. I don't think having a brake line flopping around is a good idea.
The basic idea seems fair enough, better than wheel spacers at least. I'd like to see an above view of the extensions to see if thier supported in any way to prevent twisting or folding. Weather they have any effect on the steering geometry is something I'd be concerned about. Are the tierods included?
There have been posts here about similar systems offered on ebay. IMO this is a bad idea any way you shake it and if you can't afford to do it right then you either need to accept it and ride accordingly or fully understand the downsides and risks associated with these "shortcuts". I'll look for the post when I get a chance.
I tried the kit. It actually worked the way it was discribed. But I ende up taking it of to install longer arms. The only problem I had with it was all the extra weight at the very front of the quad. It is a total of about 45 pounds. It made it very tiring to run fast through trails. Other then that it was great. I used it only once. If you want I will sell the kit to you half price.