Here are tips for Weapons and Armor in Last Chaos. You can buy the Bonus Book of Meld first after you level up to +12. However if you get the +3 on the first try, you will not have to buy or use an Extreme Stone. Also if you plan to get Bonus Books of Meld for all your armor, you may want to get the books first. You would need a minimum of 4 - +2 Bonus Meld Books for the 4 items you have to +12. Then in all this buying you are surely able to get one +3 book at least. Again, depend on your money too. If you upgrade one piece at a time, you can use this technique now.
The Chaos Smelting Stone (last chaos gold) is the new thing which you can upgrade to +12. But they are expensive now so depends if you are rich or your folks have money to let you have for the game. You can also buy a package deal with the smelts in them.
HS Upgrade Events are usually held after every Sunday quiz and at other times during the week. They have had unannounced upgrade events and sometimes the events are in the calendar. So that is one reason to go to the Homepage and read.
So that above is just the basics on upgrading your weapon or armor now. Here we provide you lastchaos money, you can order from us any time you want.