I had the same issue. My 1100 has 4" extensions and for the life of me I could not find anyone that made a bar to fit extended controls. In my search I found someone on here that had made brackets to make them fit. I'm sorry but I have no idea who that was and I just checked I have deleted all our PMs that had pics and such. I don't currently have any pics of mine but can get you a few if you wish.
I installed the OE two piece bars. To install I attached the lower mounts to the boards then rotated them to where the top would mount the closest. I then used a piece of clear plexiglas to make templates for the upper brackets. Once I had a template that worked I had some 3/16 plate cut then I shaped and drilled it where necessary. A coat of black spray paint and some chrome nuts and bolts and its all good. It took a little trial and error but all in all not too bad. The new upper holes will need to be located a little forward and higher than the current mount holes.
Only real issue I had was my lower deflectors would hit the bars so I had to remove them. The leg comfort gained was more than the wind comfort lost. Any other help I can offer is here for the asking. Ask me here or shoot me a PM. I'll do all I can for ya.
2006 V-Star 1100 Classic
Silverado windshield and passing lamps
OE Highway bar with custom mounting brackets
Kuryakyn Dually ISO Highways pegs
Barons Nasty Boy Slip-ons
Kuryakyn led headlight halo