Thanks for the nice words :). And I dont think I sound like Zak Parrish at all, I hate my voice haha.
The pack on our store usually contains more than just the UE4 content, so we are just wrapping up a few last things. I personally see it being up next week, or the following monday at the latest.
The post AP is for sale on our site, and its in the middle of the process for Epics Marketplace release. But we are usually in the dark with that process. We are as surprised as customers when content launches on the Marketplace. As for the interiors, we have modular houses in the sense you can play around with doors opening/static, and stacking floors, and you can build your own kitchen. We have another breakdown for that coming out tomorrow most likely(just needs some editing love). We will probably post a link to that on the Post AP thread we have somewhere buried in here. And hopefully the breakdown answers your questions, and more.