Piccolo:
I was just wondering, is it legal to use BFSP special characters in normal games?
EDIT:
never mind, i just noticed that there is no point value for those guys so i guess u cant field them 
Hashut’s Blessing:
If you come up with a suitable points total and get permission from your opponent, there’s no reason why not. alternatively, just use them to represent models in the respective army books.