coverting a dry irish stout to an oatmeal stout

[schubes24]

I have a kit for a dry irish stout ( all extract) that I would like to convert to an oatmeal stout. The ingredients in the kit are : 1# roasted barley, 6# Gold malt syrup,2oz Cluster hops. I was wondering what I would need to pick up to make a oatmeal stout (either a extract or partial mash), or if I just need to start from scratch with a new recipe.

 

[Berock]

nah, just add a lb of oats