btw, mack is a US company and most of their sold warranties are in the US. I think theyre in NJ. but they somehow have connections and get their gear repaired with nikon parts. so I have no doubt theyll repair the gear to spec. maybe send them an email and ask.
nikon in my country is a very pathetic store/lab. it looks like it hasnt been renovated since they opened in 1980 or so. ragged carpet, thick layers of pain and display cases from the 70's. the lab is slow and very incompetent and most of the repairs is sent to japan because they dont have the skill nor properly tools to do thorough repairs. I should use my spy cam to videotape them so others can see how pathetic it looks. they charge extreme prices for gear and give crap service, so the majority here dont buy legit nikon gear (imported through nikon here) but grey market. they get great service fast repairs and excellent price. so you can see why the nikon store here is at its low.
one of the major repair places here that does a huge amount of repairs in my country is the authorized repair center for mack. so if you have mack, you bring it to them and they repair it. this lab has close ties with the nikon here as well and have partnered with them for many years. so basically nikon here orders all parts for him and he does the repairs. he has much better repair equipment than the nikon (although far from being able to repair a failed SWM for example) here but he also does repair for nikon they cannot do.
so you now see the clear picture here. if I was in the US, I would buy the refurbed D750 without a winks hesitation and go with the diamond warranty (they offer intl and US versions) which offeres an all risk warranty for 3 or 5 years. better than anything youll get from nikon. @singerlrosa D7000 fell I believe and payed a huge repair bill on it. there are other warranties besides mack btw.
heres one by leaf
New Leaf PLUS 5 Year Drops & Spills, for Digital Cameras up to $3000 DIA5U3K