I can only reiterate what the others have said. As to my personal preference, I would look at an EQ6 for the mount, particularly if imaging is, or is going to be a requirement. I own both an EQ6 and a HEQ5 and find the EQ6 a world above the HEQ5 although it is much bigger and much heavier. I would seriously consider the 8" or bigger Schmidt_Cassegrain for visual and would look at an ED80 for wide field photography of Deep Space objects. The diference between the 80 and 100 is focal speed. The 80 is a F7 and the 100 is a F9. Doesn't sound like much but it does make a significant diference in exposure times and also the 100 being 900mm long makes a diference to the magnification ratio with a camera fitted.
If you were to go with both scopes you would be in a position to mount them together on the EQ6 and use one as a dedicated guide scope to improve your tracking accuracy and allow you to take long exposures.
Food for thought
Good luck with it all, but think before you jump.
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