Hi Bezoro - I've come up with the first character I'd like:
Mother Superior, spiritual guide to the 'Corrupted'
I want her to be in a nun style habit with head gear (head gear being the important bit). I'd like her to be a huge, corpulent, gross woman - fat over slabs of muscle. Crude, brutal and capable of punching a hole through a brick wall.
She and her nuns see to the broken minds of the radiation scarred scum of the barren wastes. Quite possibly the type to be wearing army boots (and capable of kicking people's teeth down their throats with them).
I would imagine that the Mother Superior would be armed in some way to defend herself while moving between settlements.
As discussed, $25 as a milestone up front and then an ongoing 50/50 split of net profits (RPGNow for example takes a 35% cut of the gross sale price so on their sites you'd get 50% of the remaining 65%).