meh, just skip to the part where your dragonwrought kobald gets a breathweapon of choice.
edit:update
D20srd ::: Dragon Disciple (ya i know its ubber broken cheese wrought material
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Breath Weapon (Su)
At 3rd level, a dragon disciple gains a minor breath weapon. The type and shape depend on the dragon variety whose heritage he enjoys (see below). Regardless of the ancestor, the breath weapon deals 2d8 points of damage of the appropriate energy type.
At 7th level, the damage increases to 4d8, and when a disciple attains dragon apotheosis at 10th level it reaches its full power at 6d8. Regardless of its strength, the breath weapon can be used only once per day. Use all the rules for dragon breath weapons except as specified here.
The DC of the breath weapon is 10 + class level + Con modifier.
A line-shaped breath weapon is 5 feet high, 5 feet wide, and 60 feet long. A cone-shaped breath weapon is 30 feet long.
Dragon Variety1 Breath Weapon
Other varieties of dragon disciple are possible, using other dragon varieties as ancestors.
your 8th lvl, you have the gravedragon as your ancestor and viola you have a 2d8 version of their 3d6 breath weapon... four more wasted levels in DD and you have 4d8 upgrade.
add [prc whose name i forget, that advances class features past where they are supposed to go] and maybe some bloodlines to get more dice on your halitosis O' doom.
only real down side is the DC is low, but that can be worked with im sure...
add soul eater for energy drain touch and your granpappy would be proud of you for kickin his epic ass pre epic.