good news for skinners, you will be able to skin both top and bottom of decks as well as (assumption) transfer over thps2 decks. This time around they are using PNG files.
naming convertions for boards
Generic - Used by CAS
Charname - Char Specific
BXX - Board Bottom where XX is the number 0 - 10
GXX - Griptape where XX is the number 0 - 10
Plenty of stuff to play with with clothing. Some samples below