We have come up with roughly 3 different options:
1. replace your trees with Fat Bob trees; reusing forks, brakes and spacers. Replacing; wheel, axle (FLH) and FLS fender using Klockwerks adapters. This is a bolt on affair.
2. replace your trees with FL Softail trees. SURFOR Chop will pipe in soon and explain what is required. There is grinding involved but you will be able to use the triple tree tins and fork slider covers to get a more full look.
3. A 1960-84 FLH front end. Same grinding required a the Softail option but since this is designed for a 30 degree frame rake (closer to your Dyna than the Softail) the use of the 1960-84 headlight nacelle can be used in addition to the Softail or Hydro Glide tins. My father did it in this picture on his 2005 SuperGlide.