For the price u want, is cheaper do a personalized toon with injectors. Basically, with luck you can get 1b for 1m skill points, but normally you get 0.7b for 1m sp.
You will be lucky if someone offer 7-9b, but you are asking too much. I suggest you edit your post and remove starting bid / buyout and chjeck what offers you get.
QSNA has now added new section that evaluate skills
Naturally, characters with good names / good standings / good implants might be worth more, but as it stands for example, for this toon
Possible extractions: 9 Large Skill Injectors
Extraction value: 8,207,065,960 ISK
Recreation: 21 Large Skill Injectors
Recreation value: 18,305,700,000 ISK
So, you don’t want to sell below 8.2B in any case, since that is how much you could make by just extracting skills and selling the skill injectors and biomassing the character.
Also, without some additional value in terms of great name, old character, standings, etc… you are very unlikely to get more than 18B based on skills ALONE. That is the price that somebody would need to spend on market to train brand new character to the same level you are at now.