I began with a 29g AIO. The sump area is rather small, but I just put some rock rubble in the chamber and some filter sponge (change often), protein skimmer, heater and it is good to go. Cleaning it can be a pain if you have larger fingers, but a small LED flashlight should help you see things.
No, do not turn around the tank. Seriously, that is a heavy tank with 32g of water as you know. It will not move once you fill it up.
Hope you start a build thread and let us know here you did. Would love to see the tank as it matures.
Perhaps a mirror if you leave a little space between the tank and the wall? Also, some cellphone cameras do exceedingly well in tight spots. Might want to give it a try.