Looking for a K10 Frame Dimension

[oldskullero]

Can anybody post a 1967-1972 K10 Frame Dimension in blueprint and actual photo? Pls do help me as I am very much in need of information on the actual holes of the frame on a 67-72 K10. And I also want to know if there are any differences on the frame from the 63-76 K10 frames.

My project will involve a 1964 Chevy C10 that i intend to convert on using a Leaf Spring on both front and Rear. The place where im from would not allow me to swap frames from latest models since we dont have that much availability which is why this build is totally dependent on the information i have asked.

I also dont see anybody selling a coil suspension lift kit for 64 Chevy C10. if anybody does know pls post it here as well. I may decide then to stay on 2wd. I just wanted to give it a lift from 2.5" to 3".