A6
Lunging Strike: Player's Handbook 2-->full-round attack grants +5' reach to 1 attack
A17
Whisper Gnomes are LA 0 and are the perfect DEX combatant. Bonus to DEX and CON, penalty to STR and CHA. Get Weapon Finesse and you're golden. In addtion, they have a total +9 to Hide checks and +5 to Move Silently checks. The kicker? The can cast silence one per day as a Spell-like ability, making them natural mage-killers. CHA will probably be your dumpstat, but if it is above 11, you get some other spell-likes.
A18
You can make any creature a PC. Just add its HD and LA to find starting level.
I might be wrong about that, but Savage Species should have everything you want! I refer you there.