OK, I did abandon the V8 quad idea. I started on the I like to call it yfz-r6, I got me a yfz450 frame and a 06 yzf-r6 engine

and right now I have $1300 in it total, and will have to come up with another $700 to finnish it, I started the engine today too make sure all the electronics was all good, I've got the frame striped and i'm waiting for tubing right now.... thats stuff is HIGH!!! tuesday I should have the motor in the frame and then then I get to mess with the nightmare of fuel injection wiring

the r6 bikes have a secondary injector rail in the airbox for higher rpm, and I want it to look neat and concealed under the stock plastic but thats easier said than done, tommorow I will try to post some pics of what I got...
The main question I was wanting some help with if anyone knows if it would matter if I relocated the o2 sensor? I'm rerouteing the exhaust and I will have to move it.