Contact him to get the code. After you have the code, you can make an order for the PICs from microchip.com. They have a service where you upload the code to them(..It may be the hex file..but he will send both..) and they will program the chips and mail them to you.
As for packaging: True.. You can make these things small as all get out.
As for packaging: True.. You can make these things small as all get out.