Seriously how hard would it be to just give us the basic kobold and then include the following.
EDIT: format and added a couple things
Optional abilities: If you give them one increas CR to ¼, two CR ½ and give them 2 extra h.p per option.
Shifty: may disengage as a bonus action.
Draconic Ancestry: the kobold gains resistance to one of the following energy types fire, lightning, acid, poison, or cold, scale color usually matches a chromatic dragon with the same type of resistance.
Flight: gain fly speed of 30 feet, increase Dexterity to 16 which increases AC to 13, and gives them a +1 to hit and damage. They can make ranged attacks with advantage against targets on the ground.
Superior Weapons: give them a short sword 5 (1d6+2) and use the dagger as an off hand attack for 2 (1d4).