LonghornC63

Hi y'all - I am the proud new owner of a 2012 C63 (39.5k miles) sedan who is now in search of a warranty that will protect me against any costly repairs. I had originally intended to purchase a route 66 warranty through my credit union, however, I have just learned that my application was cancelled as they no longer cover any AMG vehicle. So far I have not had much luck trying to source another warranty company that will cover my C63. Carchex did offer a 3 year/36K mile for just short of $7K, which seemed a little pricey even for a AMG. Endurance turned me down. Can anyone recommend a warranty that offers coverage for my out of factory warranty C63 that won't completely break the bank?