I put a Paragon Gold 65mm fork on my stock Turbo. I had to do a few mods for the fenders and the headlight, which is now mounted on the bars. I adapted a handlebar bracket originally from a cheap light. It is better to have the light higher. You can get some sort of adapter for the Paragon crown but I didn't bother.
I also had to invert the stem and remove spacers as the extra stack height of the forks altered the geometry somewhat.
Recently I changed tyres to Schwalbe Almotion Tubeless (including actually going tubeless). Being tubeless makes the bike MUCH more compliant over bumps, so maybe try that first.
While I don't have one on my bike (or feel the need), the Bodyfloat post is fantastic.
FWIW Specialized do stock the OEM Suntour forks for Vado nowadays. That might be a cheaper option. The Paragon's aren't anything like the Rockshox MTB forks so don't get too carried away about 'quality'. The fork on a touring bike is there to mostly take hits rather than give you a magic carpet ride (which going tubeless is more likely to give you).

