What Simon says is true - given the elegance and logical simplicity of the macro-consistency framework, it should be more widely used and more accessible. There is a good deal of unecessary mystery around the preparation of the IMF Article IV tables.
Having run several training courses on such frameworks and seen the lights go on as the accounts fit together, I find it extraordinary that no simple general guide has been produced (to my knowledge). I know Alan (Roe) was working on a textbook that might cover some of this area. Of course, the devil is in the detail and, once the basic framework is in place it raises all sorts of questions. But a large part of it's purpose is to raise those questions and to throw light on which of the questions need most attention.
A good starting point is just to take the National Accounts, Balance of Payments, Government Accounts and Monetary Accounts and stick them all on one spreadsheet, with a few pricing indicators at the top (exchange rates, inflation ...) and then try to ensure that there is consistency in the items that feature in two or more accounts (ie trade balance in NA and BoP, indirect taxes in NA and GA, official foreign grants/loans in BoP and GA, public borrowing in GA and MA ...). That leads on to some questions about the residual items that balance the different accounts, which are usually the items for which data is weakest. When starting work in a new country, I often download the latest accounts from the Article IV consultation papers on the IMF web (there is some knatty (?) copy pasting that you can do from pdf fto xls files) and get these into a common spreadsheet. That usually reveals the big data issues and allows you to focus on improving the data.
Once that is up and running, the framework is a powerful instrument for exploring future projections.