If you can find a professional or some other super-enterprise version of Visual Studio 6.0 - it came with a copy of MSDE (Basically the predecessor to SQL Express). I believe MSDE 2000 is still available as a free download from Microsoft, but I don't know if you can migrate directly from 6.5 to 2000.
I think in concept, you won't likely face any danger. Years of practice however tell me that you will always miss some object, permission, or other database item that won't manifest itself immediately. If you can script out the entire dump, the better as. As you will be less likely to miss something - and if you do miss something, it can be easily added to the script and fixed. I would avoid any manual steps (other than hitting the enter key once) like the plague.