CJam, 273 bytes

Each of the programs are in the form '<char - 1>) except for:

• Space => S, 1 byte
• ' => 39c, 3 bytes
• ) => '*(, 3 bytes
• 3 => Pi, 2 bytes (push pi, convert to integer)
• 0 => 1(, 2 bytes
• 1-9 => <num-1>), 2 bytes

Score is: 3 * 82 + 1 + 3 + 3 + 2 + 9 * 2 = 282