Just my opinion but I think 5 is too many and would go for 4. When expense is not important I go to my local cheese shop in Glasgow (even Delia has heard of it
http://www.deliaonline.com/ingredients/good-fo od-stores/iain-mellis-cheesemonger,65,GF.html and ask for adivce.
Other than that I would go for:
a strong cheddar,
a blue cheese (prefer Shropshire or one the Scottish ones),
a soft chesse (Brie or Canembert type but doesn't have to be French),
and a smoked cheese.
Anyway, eat what you enjoy and serve it at room temperature.
Personally, I like it iwth oatcakes and a selection of grapes, apple, celery, pickled onions etc depending on the cheese.
Wash it down with good red wine, Port or if you are really lucky (and I am this year) a New Zealand dessert wine.