Fuel tank/pump and rad setup for 5.3 swap

[russellrox]

I am doing a 5.3 swap into my 63 c10, it has the radiator mounts that go down below the frame rails, I am wondering if I got a rad that has more cores would work to cool the 5.3 just fine, or do I need a bigger radiator, I would like to use the stock mounting location. If not what is needed, would I have to get the v8 mounts for this year of truck, anyone have any pictures. I will be going electric fans so clearance and shrouds won't be an issue. Also fuel pump and fuel tank time how would the under bed mounted lmc tank work with a aeromotive external fuel pump and regulator work, anyone have a good setup list from their swap. Thanks.