Stuffy, I am sorry to hear of your loss. My condolences.
I have just been through this with my father-in-law, who was 86. The local military cemetery provided an extremely helpful brochure that outlined our options with regard to military funeral/service/burial/cremation. It contained much that I did not know and had not thought about, including the fact that embalming is really of no use unless you are having a viewing, that buying a more expensive casket is of no use except for show, that cremated remains do not require even a casket to be interred in this particular military cemetery, and that cremated remains can be sprinkled anywhere it is not expressly prohibited (i.e., in our case, over the mountains, from a small plane–which cost $314).
There are people at funeral homes who will tell you differently. My suggestion is to contact the military cemetery that will hold the service and see if they also have a helpful brochure.
The power of attorney, if you still have it, may help you in pulling together any records you might need. We didn’t have one, and it slowed a couple of things down, although they eventually got done.
(For instance, if you are the one filling out the death certificate, it is very helpful to also have the person’s birth certificate, and if there’s not a copy around, having the power of attorney will make it easier to get one.)
The funeral service is either whatever he wanted, if he had specific wishes, or in their absence whatever will comfort his family/friends. I also think it’s a nice gesture, for the record, to send an obituary to the newspapers, even though most of them charge for it now. (Some funeral homes include a listing as part of their services.)
Yes, it all sucks. It’s also inevitable. And it’s also true that what he left you will be with you forever.