The Ching dynasty Kanghsi dictionary lists over 47,000 characters, but the number in everyday use today is only around 3000. If one insists on writing Taiwanese in Chinese characters, then clearly many characters will have to be resurrected from the linguistic graveyard.
康熙字典上的漢字有四萬七千字之多，但我們日常使用的文字只有三千字左右，如果硬要把閩南語文字化，顯然有許多字一定要到文字冷宮裡挖掘出來才行。