I came across a FB post of someone who put together a system for astrophotography, thought it would be of interest to see it and know about the parts.  The person claims its cost was around USD 1,700, excluding the camera, which is a Nikon D850. - William Optics ZenithStar 61II Doublet Refracting Telescope - William Optics Z61 Adjustable Flattener - Optolong L-eNhance Filter - 2” - Sky-Watcher Star Adventurer 2i Pro Pack - William Optics Red Dot Finder Kit with Vixen Style Mounting