Where can I get my subwoofers and headunit installed?

I just boughta headunit-Soundstream VR-64H2B
Metra Dash kit-
and 10 in MTX Magnum MB210SP dual enclosure
and BOSS Audio KIT2 8 Gauge for my 2012 ford focus.is that enough for my car to be hooked up and also does anybody know about my headunit because their were no reviews for it on crutchfield… Also where can I get it installed locally and how much would it cost And would it take long. Also is that a good set up for a ford focus? Thank you for your time

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