I had a 4 inch spacer on mine. Then I just cut the springer head tube. My ring angle was all messed up and I couldnt start the bolt into it so I drilled out the threaded hole in the ring so I could slide the bolt threw and I put a nut on it.
Ive found that if you use spacers it makes your bike really wobbly. Shortening the tube tightened it up alot.