Transfer fee is usually 0.0001-0.0004 BTC per outgoing transfer, but sometimes it can be a more or less because of the non-deterministic nature of generated bitcoin transactions.
Note if you don't leave enough bitcoins for the fee in your wallet, the transfer can be in pending status for longer.
Optional SMS notifications: 0.00015 BTC/piece.
Custom work, such as research of possible external problems: 200 eur/hour, paid with Bitcoin by the current rate. Minimum billable amount 100 eur.