Just curious, Schroeder: are you inclined to sell the scope or keep it?
If you haven't made up your mind yet, I'd suggest at least hanging on to it for the rest of the summer and giving it a try. The Moon is at an ideal phase to observe for the next few nights and makes a great first object to observe. Jupiter and Saturn are well placed for observing to the south and will be there for a good while longer. Your new (to you) Questar will really excel at those objects, rendering them with supurb resolution. Especially if you've never observed any of those objects in any telescope before, I guarantee you'll be surprised by what you'll see at the eyepiece.
for a great map of the night sky. The August 2019 map
is, of course, the current one. It'll help you find Jupiter, Saturn, and, if you get hooked, other objects.
I scanned the photos you posted, and I didn't see any kind of instruction manual. Some of the controls on Questars can be counterintuitive, so be sure to read the instruction manual if you have it or obtain one from Questar (give them a call -- they are a solid, old school company staffed by folks who will be eager to help you; they'll even be able to tell you the exact date on which your Questar was built). I count myself as being reasonably handy, and I still found it very helpful to read the manual that accompanied my Questar. The manual will guide you away from making some initial blunders that would inhibit you from working the scope correctly and, worse, that would potentially damage the scope.
Have fun!!! You have a real gem of scope and a little piece of amateur astronomy history that many here would love to get their hands on. Welcome to the Questar forum on Cloudy Nights, too. I find this CN forum to be the most congenial of them all.