Your database isn't really that big compared to others. Another choice you could make if you have the maintenace window do it is this:

1. Script the database (all of it)

2. Create a new empty database using the scripts from above

3. Transfer the data from the old database to the new database

4. Drop the old database (or rename it)

5. Rename the new database to the old datbase name.

You can test this multiple times leaving off steps 4 and 5 until you feel confortable with what needs to be done.