Currently it's possible to build a report that starts at Sales Ledger and then expand to Sales Ledger Stats.
However there are several other entities that have useful information in them.
Sales Ledger Cohort (Preview)
Sales Ledger Monthly
Sales Ledger RFM (Preview)
Sales Ledger YTD
As an example you would not be able to run a report that had both monthly breakdowns from Sales Ledger Monthly as well as the YTD information from Sales Ledger YTD.
Currently it's not possible to get both of these in one report and you would need separate reports for them.