I have just got into astro photography and have gone down the ED80 on an EQ5 mount. That is a lot more than the $700 you started at more like $1200 by the time you have a camera adapter. And that is before motorising it.
The ED by the way means it is better corrected for colour ocussing. important in photographing bright objects.
For your whale watching remember this is an astro telescope so everything is upside down and left to right. A diagonal gets it up the right way but it is still left to right.
With photography you mentioned not getting an SLR, this brings up the question of focusing. You are going to have problems I suggest you lok into some of the articles as you cannot simply focus the telescope with a viewfinder and then substitute a camera. You can just put the camera up to the lens but th results are not going to be very good.
Roger
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