Truck Frame Need HELP Please!

[68SWBChevy]

Hey guys I have a question I'm hoping someone could answer. I have 68 SWB 2WD truck that I am restoring. I've just realized the frame is bent and I need another frame. I've gone and looked at a few and have a few questions I can't find the answers too.

Does anyone have a drawing or spreadsheets with the dimension on for one of the frames?

Are the frames any different from 67 to 72? I know there is coil and leaf springs but aside from that, I think the K members are all pretty much the same. Can anyone confirm?

Last but not least is there any difference between a truck frame that has power steering and one that doesn't? Mine does have power steering and has the 4 dimples where the gear box bolts I wasn't sure if they were all the same or not as far as that is concerned.

Any help anyone could give me would be very much appreciated.

Thanks!

James