I have purchased a full CBR 600RR 03 front end, does anyone have any information as to set up or guide lines. I have seen one member who has used that front end but how did it handle what problems did they encounter. The front does seem a little steep and a little shorter than stock, please help guys as I'm mid way through the build.

The Cafe racer project so far can be seen here :
VTR Cafe Racer Build

 

I don't know much about the actual conversion with 600RR front besides the fact that I'm going to do the same but with 1000RR front, just waiting on couple parts.
I did do a conversion to one of my older bikes with CBR600F3 complete front end, even that older front end was a huge improvement and works better then the VTR front end.
I do know from riding 600RR, you will get a little more aggressive position (meaning Geometry) and shorter wheel base, better brakes as well and lighter front in general if you going to use 600RR wheel. I'm sure it will improve many of the downfalls of the VTR front end. You will love it, I have no doubt!