Develop a CCI, MA, MA slope degree indicator

I'm looking at making a CCI, MA, MA slope degree indicator. The idea is that an arrow shows only in the direction of the trend if the MA is sloped up or down to a certain degree of the users choosing and a certain movement is triggered on the CCI. CCI will be used to trigger a trade in the direction of a trend when it crosses back from the 100 line or the -100 line.

If the trend is up then it gives an up arrow if the degree slope is between the designated number (example: 15 degrees - 90 degrees) and when the CCI crosses up on the -100 line.

If the trend is down then it gives a down arrow if the degree slope is between the designated numbers (example: 345 - 360 degrees) and when the CCI crosses down on the 100 line.

This allows the indicator to only trade when there is a pullback on a strong trend. Please see my example pictures as references. 

 If it is successful, I would also like to do an EA.