Drawings are generated from the model, not alongside it. Change a dimension in the model and it changes on every sheet — the assembly and the part drawings can never disagree.
I find out who will build it — your shop, a subcontractor, an export customer — which sets the standard and the level of detail
I split the product into sub-assemblies the way it will actually be put together
I detail the parts: dimensions from datums, tolerances only where they matter
I add weld symbols, finishes and marking, and compile the bill of materials
I check the package through the shop's eyes: can the product be built from it without the model?