Another thing I forgot to mention. In a very honest implementation of a trading platform (as it should be):
All stop loss orders will be executed exactly at the stop price - not one bit lower or higher.
This also is routine system programming. But I believe most stop loss orders may not be honored in this manner - never with Kraken from what is happening. Only with real stops can proper speculation be done in such volatile markets.
From what I know, all bitcoin exchanges allow program trading through bots - free of charge. This should be if I were to implement an exchange as it would be the best manner to have the smallest market spread.