Should I use the 67 single shear K frame?

I modified a 67 K member into a 68 an up by carefully cutting the welds on the idler arm mount, and welding on one from a 70' slant six K member. I did not like that 67 set-up either, and as mentioned the idler arms are more expensive and harder to come by. If you know how to weld, it's an easy upgrade.