Hi Sir,
If you want to know in depth knowledge in making scrolling display or any projects using microcontroller it will be better to learn c programming. else if u want to just make the display you can get code from the net.
PIC microcontroller board and LED matrix boards available in online websites where you can buy it.
In PIC controller there are many family of IC’s available like PIC 16f877, 16f877a, 16f887. U can choose in which you are familier with.
To to program the PIC you can use mikcro C or MPLAB which you know. If not you have to learn how to use it, there are many tutorials available on youtube.