KvE> The character however is represented by xc3b8, so he conversion KvE> table is not consulted for xF8, but for xC3 and xB8.
The above is the wrong way to handle that. The actual utf-8 code is *not* 0xc3b8 but instead 0x0f8 or U+00F8 depending on your output in any half-decent utf-8 capable application. The little endian hex output should be c3b8 though but that is a limitation imposed by an 8-bit character application including a shell such as bash.
I find this link quite handy when looking up utf-8 codes; http://www.utf8-chartable.de/. Note the below cut and paste for this particular character;