Thanks for reaching out to the Community, @tlatham.
Let me help route you to the right support that can assist in building custom reports.
Our QBAR specialists can help you further in creating custom reports since they are more familiar in these areas. If you are interested in finding someone to assist http://intuitresellerlocator.com/ can help you locate a QBAR specialist.
We also have training modules where we walk you through building reports from scratch. The Resources tab contains the Advanced User Resource Guide (pdf) along with the data dictionary you can use to select the dimensions you want to have on your report. If you need more information about QBAR, then you can refer to this Community Article: QuickBooks Advanced Reporting (QBAR) FAQ.
If you have any additional questions or concerns, please don't hesitate and reach back out to me! I've got your back. Have a great day.
