00 F250 to 07 F450?

Hey guys i got a buddy that wants to put a 07 f450 front clip on his 00 f250. what all does this intail, as in does the core support need to me changed. and if so are the ford coresupports welded in or just bolt in like the chevys. Just wondering if he can buy the body parts and theyll bolt up. So all in all whay do i need to do to make this work

they are doing one of these swaps on an 'o5 f350 in my area...definitely not a bolt up custom....dont know exactly what went into it but i can find out...definitely new core support and nothing lines up inside either like the inner fenders and such, from the little i know there is a decent amount of fab involved...