D. Michael Quinn addressed the scope of the finances (holding companies, property, etc.) in his book but I don't think he came up with a specific value. However, his goal was more to address the integration of church leadership in these external finances than to quantify them.
Edit: And I agree with you, it's really frustrating.
Amazon gives the date of February 15, 2017. https://www.amazon.com/Mormon-Hierarchy-Wealth-Corporate-Power/dp/1560852356/
I'm not sure how reliable that is
Item | Current | Lowest | Reviews |
---|---|---|---|
The Mormon Hierarchy: Wealth and Corporate Power… | $36.74 | $36.74 | 4.1/5.0 |
^Item Info | Bot Info | Trigger
Letter to an IRS Director — must read document from an insider at Ensign Peak Advisors (2019h. This is the most revealing documentation about church finances published ever!
http://openargs.com/wp-content/uploads/IRS-Letter-Final.pdf
D Michael Quinn: Wealth and Corporate Power — mind blowing documentation show that LDS Church controlled the vast majority of Utah economy (aka member lives) for 100 years.
https://www.amazon.com/Mormon-Hierarchy-Wealth-Corporate-Power/dp/1560852356/ref=nodl_
I haven't read it, but this might be helpful. It just came out 3 weeks ago. https://www.amazon.com/Mormon-Hierarchy-Wealth-Corporate-Power/dp/1560852356