1. Can I somehow disable aging for specific households? I know I can disable story progression by making a household Sacred but what about aging?
I don't remember implementing an aging-control for singular specific households. Just TS2-style where only the household you are currently playing ages vs. Default. If you want finer-grained controls where ONE specific household doesn't age while everyone else does, you probably want some other mod on top.2. If I use NRaaS Story Progression instead of Awesome mod's, will the Sacred Household system interfere in any way with it? I'm not asking if it'll disable the story progression - I know it won't - I'm just worried the two mods might conflict or something, since Awesome Mod isn't programmed to work with NRaaS SP.
If you have NRass SP, AwesomeMod SP should turn itself off and yield control over to that. At that point, Sacred does nothing unless NRaas is supporting it.3. Does Awesome mod interfere with the tattoo system in CAS?
Not that I know of. I have not touched this area and have received no reports of it.