A nice double barrel would be a nice addition....But I also agree, I think a FN FAL would look nice! There is never enough; Just like the saying goes I'd rather have it and not need it than to need it and not have it!
No gun collection is complete without them. You need a government model, a commander model, an officer model. Then you have to get into the hybrids like the CCO's, steel framed, alloy framed...
The dictionary definition of "having enough firearms" is an undefined number. You can never have "enough" firearms. You might not have enough room for them, enough places to hide them, enough places to shoot them, enough hands to hold them but you can never have "enough" firearms.
No such thing as enough. Think of it as collecting the heirlooms that will be passed down to generations of your family not yet born. Someday, your grandson may teach your great grandson (or granddaughter) how to shoot with one of those. Since you don't know how many great grandkids you may have, you'd better keep buying guns. It would be rude to not have enough for all of them.