That depends on how often people transfer out and flexcoin collects the transaction fee... theoretically you could make that in a month (when discount payments are sent) if the adoption rate was high with high bitcoin valued holders.  Because the transaction fees would be substantial, as would the discount payment sent to you....  it could also be 1000 years if the adoption rate is terrible.....   it completely depends on how well flexcoin does overall.

I will answer the rest of the questions later tonight...  I need to get home.