I'd use some simple shift register to drive the matrix LEDs and possibly a dedicated 7Seg decoder chip for the each of the 4 7seg. These can usually cascade so you only need 4 data, latch and clock (6 pins). The shift register can cascade another 3 pin. The LCD probably already is suitably mounted on some board so it does not need a shield as such, but they tend to use 10(?) pins. In other words, not a standard shield - the layout is too special. Remember you can use the A0-A5 pins as digital output, too.