Thank your remembering the double-volume space! Not everyone shows the same attention to detail when it comes to building and to builds.
I'd hoped to have a different house exterior for each new town, but have since realized that I prefer some exterior styles more than others...
So looking forward to how you build for this challenge!
What I meant to say about FabWealthy is that it used to be a reliable way to track the heir's earned income from selling stuff from personal inventory, publishing royalties, job income, and money fruit.
Since the last patch, FabWealthy also includes "funds contributed to household funds by a moved-in sim," which will auto-complete the Power of 10's "Earn $10k" requirement, making it too easy. (I need to post that in the P10 challenge thread.)
But yes, starting each generation without any cash crops is definitely fun and challenging!
It's always such a thrill when the cash starts flowing in and we can replace all the cheap furnishings and build mode objects with the "good stuff."
Kahlua looks attractive when she's wearing make-up and smiling, but a cleft chin is not a great look for a female sim...
I'll add a close-up of Kahlua in between the toddler spam in the next update.