Got my invite to "Drunken" Didi Vatermann from Selene Jean at grade 3 1/3 (not the grade 2 that had been suggested). In live, he wants 200 units of Lavian Brandy (was it 20 in beta, I can't remember?) and trade rank: Merchant. The Brandy might take a while, not sure what the personal allowance is on it.
When you do get a chance to browse her modifications, dump a zip file of the screenshots here