I just put 10" apes on my classic with no issues on rerouting and none of the cables are tight. I'm close to your height (6'1) and just did a review of a taller seat (Mustang) with the apes.
Perhaps look for a set of classic risers on the site or on ebay. There is a set on ebay for 60 bucks.
EDIT: For what its worth, I measured my stock risers...they are 2"
Current: 2012 Vulcan 900 Classic
Hard Krome 3" Drag Pros | J&P cycles Chrome 10" Ape Hangers 500-839 | Himalaya Leather Swing Arm Bag
Mustang Wide Touring Vintage Seat | Cobra Small Sissy Bar
Previous: 2004 Honda Spirit 1100
Last edited by rygen; 07-16-2013 at 06:56 PM.