Thanks for the input sir. Some of your suggestion is already in the works or has been done - I confirmed after I posted that his wife is aware <and actually made the request for him> of his wishes, and we are attempting to find out what modern unit will be providing the Honor Guard so we can contact them to coordinate.
Once we find out what cemetery, our intent is also to contact them regarding their regulations of firing a salute (since we are not current military).
I fully agree that the reenactor unit must be sharp. Members of the unit were honored this past May by being included in a ceremony for local black soldiers (three of the individuals honored were killed during or veterans of the Civil War) at a local cemetery. In that case, six modern Honor Guard lined up for the rifle salute, with three of ours joining their line. One of us fired in each volley. They were up wind, but the one next to me caught a wiff and it proceeded very much as you outlined.
Thank you again,
Calum