Congratulations, Looks good, but do me a favor and take the fenders off the lifelines and onto the base of the stanchions Please. (yeah, I'm not overly retentive)
As tempting as the great new chartplotters are they are usually overkill for what we need here. If you've got some kind of handheld that will point you at Two Harbors it'll work fine, I'm using an old GPS III and a lot of people opt for the 76's around here. Base station coverage by the CG and vessel assist in our area is strong enough and overlapping that a 6 ft. railmount ant. has worked well for many if you don't have a masttop.