Thank you for the information and link. In the link, they say to cut a hole in the inner fender to gain access to the heater core hose connection(s). An obvious shortcut, which I will avoid.
Upon closer inspection, it appears removal, or at least moved somewhat out of the way, of the inner fender is a must. It looks like I'll need is to drill the pop rivets from the A/C hose bracket that is pop riveted to the inner fender. Then, after removal of all inner fender attachment bolts, I think I can just allow the inner fender to fall out and away from the engine compartment, and to rest on the top of the front right tire, while I work to remove the hoses from the core. Does this sound about right?