Transformation of a 71 chevlle front end to a 70 chevelle SS front end

I'm trying to figure out how to remove and install a core sport on my 1971

chevelle it is not an SS and this was the model that had singel head lights.

What I'm really trying to do is remove my core support from my 71 and install a new one from a 70 SS model the one with the dual headlights, has anyone done this before if so can you please help.

Is there going to be any kind of cutting and welding involved I know I would have to replace my fenders and my front bumper. But that all should bolt on and off. it's the core support I'm worried about.

Being an SS (or not) has nothing to do with it.
No cutting necessary.
It's Pretty straight forward, remove bolts, remove bumper, valance, hood, fender extensions, fenders, radiator, wiring, core support.

Reinstall 70 core support, 70 radiator, 70 fenders, 70 bumper, 70 valance, 70 grill, 70 fender extensions, 70 wiring, 70-72 hood, tighten bolts.

Is the wiring a pain to redo after converting this over to a 70 model, when you say 70 wiring, is that the total front end wiring need to be from a 1970 model or or using whats in place and modifying, for a beginner like me is that going to be tough to do???