Does anyone have a step by step wiring work up?

I am looking for a step by step wiring work up, for the hemi swap.
I need something that allows me to get a junkyard harness, and modify it to work with the new hemi. I have a 05 hemi.

I don't want to spend all this money that these companies want for it, I dont' care if it takes me a little time to do it. I have time, i dont' have money.

Does anyone have any help or advice with this?

Thanks