Josh, the bolt on 6" TTB kits are good, but they can be real tricky to get to ride well on the street. The biggest drawback is the bump steer, without modified steering you can only remove so much of it, the stock inverted Y steering setup Ford used creates a huge amount of toe change through the travel cycle.
To keep your truck a daily driver and use the TTB it will be difficult to get it to ride as nice as a truck that has a properly setup solid axle. Now with that said, you can always add on to your TTB over time to improve it, I went this route and my truck drives like a dream (TTB) on the street but my setup is no where near the bolt on kit it started life as and now I want to rip it out and completely re-do it with a custom set of beams, etc.....
Solid axle may be the way to go for you, it sounds like it to me. I kept the TTB because I am a big fan of it for what I use my truck for, a long travel 4x4 TTB setup has advantages, but you will get real familiar with how it works, why, and how to keep it together real quick, especially daily driven with 35's on a D35 TTB.