hey thanks guys, as for ride, well i actually cant say because i didnt get a chance to take it out in the bush, i only went around the block a few times as the motor was still fresh and then i had to leave for varsity, so my brother has been running it in and he says its 100x better than the original, but i cant say yet, but how can it not be better??!!
Cost, well i got the a arms and shocks from a local guy here in S Africa which cost me R2000 which is about $250 Then I got Raptor660 spindles from ebay. I first got banshee spindles but they dont work as they put too much stress on the ball joints. YFZ450 ones would be ideal but i coundnt get hold of any so i just used the raptor ones.
As for width, it turns out to be 17mm wider than a stock YFZ450, 8.5mm on either side.im not sure of how much wider than a stock blaster it is. it comes out 17mm wider than a 450 because of the blasters wierd tapered frame which is wider than than the 450 at mount points.
I did not use a jig as i found that to be a bit too inaccurate. I did it all by measurements, correct to 0.5mm.
Like I mentioned, im busy typing up a "how to" with some more pics of the fabbing ect with all the measurements and how i got to them, what you will need etc. its just taking a while as its turning out to be quite long! in it i should answer all of your questions a bit better.