Sure, I couldn’t find a better data source than that. If you find a better source that includes liquid assets specifically that would be helpful. I am skeptical that of the 39k in assets listed there, there isn’t a substantial amount that can be used to pay the bills (i.e. who has $39k in their 401k but $0 anywhere else?).

It seems some "Survey Data" files are publicly available [0], but without investing a bit more effort in parsing them (which is definitely not happening on my phone) I'm not sure if they have the kind of household-by-household data that could be used.

https://www.federalreserve.gov/econres/scfindex.htm