I had a similar setup on my 10 Ultra Classic ~ The bottom end was fine ~ sold it at 71k. Also, I never had any issues with Jamies Type B heads ( the stock 103 heads never lasted over 30k on my last three bikes) The 06 had 93k on the clock when sold and had 2 replacement rear 103 head (CVO Ultra). One at 40 & one at 80k. The 10 Ultra LTD had a replacement head at 30k from HD (rear) and then I purchased Jamies Type b's put it on the bike and rode it another 40k with NO issues. I am a huge FM fan of product and service. He has assisted me with my last three bikes since 2006 and I ridden them 170k collectively...
~Road Glide The only way to Fly ~