How hard is it to replace the very front part of a 914 front clip?

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Hi folks, first time on this forum so be gentle if I ask especially dimwitted questions. Grin.

If I had the missing front section from another car that was straight, how nasty of a job is it to put that on and make this one whole again?

The rest of the car is really straight so it's worth some effort, just not sure where this fits in the spectrum of things you don't really want to do to your 914...

Thanks!