Get them from a dealer and you will pay more than 1 bill more.
As a D.A.V. I have a lot of up's and downs as far as feeling good. I experience lots of pain daily which is normal. Therefore I almost have to use a dealer of some sort for a lot that needs to be done to my bikes and tires is 1 of those things.
It cost me $507 for both tires installed. They will not install tires that you do not buy from them. They are great tires so far. They grip better than the 402's

In God we Trust

dd