Since you'll want your living area by the fireplace (and patio doors), your kitchen and dining space would be on the opposite end of the great room. Perhaps you could create an "L" shaped kitchen along the outside wall in the corner left of the patio doors so you can have a window over your sink and a kitchen door to the outside to access your trash can without going through the living area.

No to curved island. Mine is 100” long and 36” wide, with only a 12” overhang. We have 4 barstools here, though usually only 2 of us sit here at a time or just our teenager (who’s 6’ and fits fine). A lot of people get all bent out of shape about smaller seating area but in the grand scheme of things, it works fine and looks fine. Would I have a family of 4 sit here for dinner every night? No, probably not, but we have a kitchen table and a dining room table available for that. As far as resale value and just aesthetics the island looks good and seating is available.

Your dilemma reads like a math story problem!!! (I was horrible at them!). Please post a floor plan.

What size is the table? Yes as long as it is at least 24" wider than the table on all sides.