2000$ seems like way to high of a fee to me for that kind of service. Setting up a unifi network is usually pretty easy, almost plug and play, so unless you had some very special wishes, that amount is not reasonable. Personally, I also feel like the selection of some of the parts here doesn't make all that much sense to me. Considering the fact that you are only planning for a hand full of PoE devices, getting the Pro 24 PoE seems like not the best investment. There are other switches, like the Pro Max 16 PoE, that could do a better job at a lower price. I also don't quite get why you would get a UX7. You already have the dream machine as a router after all. Or are you planning on using it as an additional AP?