Firm feel k frame reinforcement
The Firm Feel kit is probably a little expensive for what it is. It does save a decent amount of time though compared to making all the pieces yourself, so it really just comes down to what you’d rather do.
I bought the Firm Feel kit I used for the first K I did second hand. When I did the second K I just made my own pieces. I think the end result is about the same. I probably wouldn’t buy another kit myself, but if you’re only doing one and don’t want to buy a bunch of metal and make the patterns for all the pieces it’s not a bad idea.