I also vote for "dummy" parts (I like to call them phantom parts because they're not dummy at all!). It's the only way of get consistency to your project. You don't need to model anything, but the required information will be there.
You invest a lot money and effort creating documents (parts, assemblies, drawing) that share the same database so you don't loose track on your design. Don't throw it away now creating dumb (now the right word!) uncontroled documents.
You can even have custom properties that give the exact information about the item to apply. Example you insert 1 phantom part called "Loctite 222", Qty to assemble "0.5", units "gr"; 5 parts called "Cable FV 2.5 blue", Qty to assemble "2", units "m". This information can be outputed in you boom and is controled at part/assembly level, giving consistency to your design.
Regards