Use my own wireless router

I know this can be done from the previous posts I've seen in this forum, but I just want to confirm a few things before I go ahead and become a new FIOS customer.  A few things about my setup:

• I will not be using any of Verizon's STBs; I have a HDHomerun and will be using a CableCard
• I live in a very vertial townhouse, so I have a wirelss router and bridge on different floors that are connected together using two Actiontec moca adapters (this model: https://www.amazon.com/gp/product/B008EQ4BQG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1)
• The ONT is outside and would tricky to get ethernet run from it

I would like to know a few things:

1. Would I be able to use one of my Actiontec devices to connect the ethernet signal coming from the ONT into the WAN port on my router?
2. How are public IP addresses given out from Verizon?  What IP addresses are going to be given out to devices that are on the moca network?  I want to make sure that my wireless bridge will be able to give out private IPs and won't have any strange conflicts.
3. I know this isn't supported by Verizon, but what do I do if the internet goes out for something outside of my control?  How much of a pain is it going to be to get resolved?

Thanks!