Smart move!
I haven't personally tried Hakka R3's, but have heard positive things about them.
Personally, I run either Blizzak WS*0 or Michelin X-ICE Xi* winter tires (* number keeps getting incremented over time). I had tried others over the years, but keep coming back to these two.
I had ordered and just received a set of 18" winter tires and wheels (mounted and balanced with TMPS, shipped) from tirerack.com the other week for $1,868.80.
They come ready to go, and I install them myself when either temps start dropping below 40F at night, or there is a forecast for the first snow storm of the season.
Consider searching the list of independent tire shops that work with TR, by zip code:
https://www.tirerack.com/content/tirerack/desktop/en/deliver_installation.html
Every place I ever tried was willing to work on a set of wheels and tires that I brought to them.
Alternatively, ask if DT will do what TR does - namely, you order a set, and they ship wheels+tires pre-mounted directly to your door.
Good luck!
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