1/10 Scale P/U dimensions

[Ktbone]

I am in the process of drafting some scale plans for a P/U using actual drawings and dimensions from the 1:1. After laying out the preliminary frame dimensions it seems a bit longer and narrower than the standard 1/10 scaler.
So I'm wondering what are the average dimensions of a large P/U (F350 size) scale chasis? Specifically; length, width, and wheelbase?

For those that have built from the frame up like this in the past what areas might I need to modify from the 1:1 frame to work for RC?

Thanks in advance and once I get rolling on this I promise very detailed build thread.