I sell enterprise grade cameras for a living. My advice would be if you can afford spending a little more than the cheapest options, Ubiquiti is a great way to go. For install, that really depends on how comfortable you are doing it yourself and how professional you want it to look (especially if you go with a wired unit). If you’re pulling cable you’ll need to make some external penetrations that aren’t difficult but you way want to leave to a pro. Any low voltage electrician should be able to help you out.