Walthers code 83 (Shinohara) has #6 1/2, #7, #7 1/2, & #8. # 6 1/2 uses 20" & 24" radii, #8 is 32" & 36". The others are in between. Peco lists curved turnouts, but they don't give very clear radius info in the Walthers catalog. I think you can use CVT tie strips with the code of rail of...