that car you pictured, it has a mk2 grille it looks like. it doesnt fit the fenders and lines right.
but yea, you just need fenders off a 1980 or older car. they will fit and make the single round grille work.
you need the whole core support tho, not just the fenders.. basically the whole front clip off a pre 81 car.. or order all new parts and do it that way.