I was able to relate the hard drive just doing steps 1-5, & 10-15 and propped the monitor up with two pieces of wood dowels about 8 inches long. The dowels fit into the two metal indents on the back side of the display and on the aluminum housing. I didn’t have to remove all the connectors and was able to remove and replace the hard drive quicker… This is the second time I replace a hard drive in this type of Mac. I was able to lose the screws to the hard drive and cables without affecting the other cables…
I've found if you take some clear tape and use about three inches, fold it over on it self and attach the sticky part of the tape to the ribbon, without the sticky part covering the leads, then slide the connector into the lead socket and put on finger on top of the ribbon to hold it down parallel with the socket then pull the tape towards the socket the ribbon will slide in without bending or damaging the ribbon. The tape should only be as wide as the ribbon so it doesn't not stick to anything else.