Welcome to the money pit
With a budget like that I would say that you'd be best getting an 8" dob and a few eye pieces for your wife and yourself to view the skies.
It is not a good telescope for photography as it doesn't track the sky. Getting that setup will blow most of not all of your cash BUT I would suggest having a
look at this for getting into astrophotography. You already have the camera, lens' and tripod.
In astrophotography your mount is pretty much your most important piece of equipment. You can get reasonable photos with a good mount and poor telescope but you can have a $5,000 telescope on a bad mount and never get a usable image.