Are you not missing the point - it is not the individual that it is for, but for all those who died before him. Largely unsung and with the last to go, no doubt all too soon forgotten, this offers a very special (and dare I suggest very British) act of Remembrance for a generation that suffered in ways we are lucky enough only to have to imagine.
The presumption of course is that it is what the 'individual' concerned will want. If he is anything like most veterans I have met and chatted to, then he will not want to see himself as a hero or someone special and will argue that many of his fallen comrades are more worthy of the nations 'State' funeral. So who are we to demand that he should serve our own purposes ?? Let his family bury him in peace and with dignity attended by his own friends and colleagues, away from the glare of commercial and political sharks who only seek to feather their own nests and make capital out of such an event.
By all means have a national ceremony if that's what the public want, but not specifically for the 'last Tommy' nor involving him. Have it for the remembrance of all who have died in the service of this country.