You can throw out your estimate for the price of the badges I dont mind.
As far as SES goes... there are lots of bosses that drop SES.
Puma, Elizabeth, Bez, Ruler, Observers, Ramos, Raymond, Russel and Tyrant along with elemental dungeon runs (At a bare minimum 6 pts a day hit ses (thats 48 ses) realistically speaking its probably around 10 or 12 parties (60-72 ses) and mobs like come on increased drop rate on jin :P I dont think we need to exchange badges for SES.