Usually if I offer parts for sale / trade, the first person who contacts me with interest gets dibs. I'll usually give them 24-48 hours to get back to me from that first contact to iron out details and such. The situation in the thread about the housing is fairly unique. Robbie has offered me many parts in the past (and fairly recently) in helping me in my projects. I have little doubt he meant no ill will to you, and didn't mean to leave you high and dry.