I can understand your concerns, but I will take all the necessary precautions, and I will be alone in the environment, and above all, I will be behind the light beam.
You are not only wanting to do a dangerous laser project, but you are also hoping to use the most dangerous visible diode available. I can see a disaster waiting to happen. Also you need laser goggles rated at OD 5 for 190-540nm. To be blunt, I do not advise you to do it. There are so many cheaper, safer and time saving alternatives to this idea.