It would, just use the same method as the first with 4 conditionals
$price1 = get_field( 'foo' );
$link1 = get_field( 'bar' );
if( $price1 && $link1 ) {
$return .= '<a href="' . esc_url( $link1 ) . '">' . $price1 . '</a>';
}
If none of the conditionals run, $return will be empty and you can check against that to return you default string.
