I put 1" genmar risers on my '07 shortly after getting it. I felt like I had too much weight on my wrists and elbows, even with the bars in the rear-most position. Have you checked that too? IMO at 5'10" on a good day, the risers were definitely worth it. No replacement of or addition to any hoses or cables needed, no changes to normal maintenance like steering bearings or tank lifting/removal. Honestly, how often are you gonna grease steering bearings? From my experience, try the risers first and keep searching for Helibar repalcement top plate. There's 2 models for the Gen2. Both are out of production, so you gotta act fast when you see one.
Some info, pics, and part #'s in this thread -> Adding Risers To Helibars
Some info, pics, and part #'s in this thread -> Adding Risers To Helibars