Personally, I would check with the shop to see what they need. I would guess that they can machine the parts off of the solid models. If so, I would just put in dimensions that you can easily measure that will allow you to check the overall size and any critical dimensions with particularly tight tolerances.
In addition to "critical dimensions" (I don't really like that term because any dimension for any feature is critical - otherwise the feature wouldn't be needed), the method of growing using is to declare the model as basic and apply a profile all over symbol to all surfaces. I talked this a long time ago here: http://www.fcsuper.com/swblog/?p=213