Cab Bolt Hole Locations/Dimension

[cottonme173]

I am removing the cab on my 77 C20 single cab and want to make a cab stand to be able to roll it around. I am replacing a lot of rust, floor, door jams and want a stable platform to limit heat warping and the such. What I am looking for it the bolt spacing for the two front and two rear bolts and the height difference and distance between so I can make a stand that is exact to the frame (before I take the cab off and just measure my frame).

I thought this would be simple to find, but have not come across anything that is simple and to the point!

Cheers fellas and thank you!