Funeral Expenses for Son

My name is Lois and my son Matthew was a military veteran and after serving his country became 100% service connected disability for PTSD. On Tuesday July 12, 2022 he committed intentional suicide. He left a note and video explaining why he couldn’t continue on this earth any longer as the tragedies he experiences were far more than he could cope with. He has left behind a 2 year old daughter and a 3 1/2 year old son. We need help to provide him with a proper service. The military will bury him. I have chosen a casket and need to plan his funeral and any help would be greatly appreciated. My son will be buried in Crownsville, MD VA cemetery. Again if you can help I’d really like this military coffin to bury him in.