Most things you can rip from other custom sources, like Imagine. Point system are pretty easy, for the stores just change the currency that the shop takes to whatever ID you want if its another physical item, or make the NPC read your points on your char. There's tons of tutorials on dicing, and making Ironmen on your server. Also, I would work with Java more, explore your files, read the code, and try to understand it. There are free classes online where you can learn Java. =)
If you still need help on anything in a few days let me know.