Shadowkeep Dualing

[Rankor]

Greetings,

I'd like some advice from you D&Ders out there. I want to start a new TOB game with a new character: a straight fighter that dualled at level 9 to a thief. TOB only lets you start out as a pure class, though. I'd like to know how I should Shadowkeep my character so that he would emulate a dualed fighter/thief. Questions:
Hit dice:
I know that a lvl 9 fighter gets 9 (d10) hit dice, but how many hit dice would a thief get from that point on? the full amount or just one point per level?
THACO:
What THACO would a lvl 9 fighter have? I assume it would be better than a lvl 17 thief (or whatever level TOB starts you at).
Stars:
How many *'s would a level 9 fighter have? 5 I think, but I'm not sure.
Is there anything else that I need to think about? I just want to make a character that is as realistic to the game rules as possible.
Thanks!
Rankor

[Sir Marcus Swordseeker]

I believe a thief get a 6 sider at 10th then 1 per level after thaco of a 9 th level fighter is base 12 plust str spec and magic and finaly yes five *

[Grindar Silvermane]

Fighter up to 9th level 1 d10 / level (+ bonus for high con)
Thief 10th level 1 d 6. After that 2 hp / level.
Fighter prof. slots: weapon: initial 4 / +1 per 3 levels
non-weapon initial 3 / +1 per 3 levels
Thief prof. slots: weapon: initial 2 / +1 per 4 levels
non-weapon initial 3 / +1 per 4 levels
Specialist attacks / round: figter level 9: 2/round melee weapon
3/2 light x-bow, 1/1 heavy x-bow, 4/1 thrown dagger, 5/1 thrown dart, 2/1 other (non-bow) missiles
As for stars: sorry but don't know exactly how that's counted in BGII/TOB

Hope to have been of some help