Rod, do you currently have an inventory of your collection?
no, not really, I do have images of most stamps I own, in a external Harddrive,
I use for expediting sorting of random bundles of stamps.
I have circa 250 stamp albums.
Let's get serious, I reckon based on my purchases, each stamp album would be worth $30 to $80 depending on completion.
My specialised collections, Turkey and Romania and maybe a couple of others may fetch $2,000 to $5,000 ?
That's it, really no big deal.
I have collected as a hobby, money spent whilst others maybe have spent it on fine dining, world trips, caravans, whatever.
I do not need to recoup any money, the money spent has been my enjoyment of a pastime.
What concerns me most, is the property going to the most deserving.
I would imagine all collectors would desire their material, to go to an appreciative and caring destination, that offers good husbandry, and a genuine interest in Philately, and not always "value"
Your situation deserves a differing approach as you have family.
I think really what will happen, is at my sudden demise, things will get sorted somehow, by somebody, and I'll be in no mind to be worrying about it at all.