You can even personalize the access with multiple DynDNS systems, using Synology.me, DiskSation.me, DScloud.me. So you don't really need a fix public IP.

I was tempted to write a guide about "NAS for bitcoiners", but there are so many tutorials on internet that is not worth it.

Seriously people are really underestimate these NAS and are powerful machines dedicated for this stuff (sharing stuff on internet). You only need to study a little about how to secure the access and done.

Keep your node "clean" and robust and use a NAS for anything else.