Talon SS conversion to "condor"

I was planning to buy a condor to install the new .25 barrel from Walt, however, I have an extra TSS and am thinking of converting it. I know I’ll need a high flow valve and have contacted Sean about a blodnob valve. My understanding is that I’ll also need a heavier hammer and spring. What is a good hammer weight to use and is there anything else I’ll need to complete the transformation? All ideas are welcome.