It kinda sounds like your only concern is how much $$$$$$ they are worth. The answer to that is pretty simple: In their current state, almost nothing. Either of them could be worth a decent price to the right buyer if they where restored. Properly restoring one of the isn't as quick and easy as everyone thinks. Yes they are great machines because of there simplicity in design, but it takes bit of effort to restore one to sell for a profit.
Completely strip the entire mower down.
clean chrome handle, new new grip cover on handle,
find new or nice shape wheels, find good OEM wheel bolts with the correct logo,
strip the finish off of the deck, prime, paint, clear, (if you want the finish to have any kind of stability it will need to be done with heat and fuel resistant paint, and need to cure for approximately 3 weeks)
overhaul the engine, piston, rings, seals, rod, bearings, etc, etc.
media blast, wire wheel, clean and polish every single nut, bolt, washer, and piece of metal.
Repaint, repair or replace shroud,
new decals, new plate,
overhaul recoil starter assembly, correct starter handle,
fix or replace all sun faded plastic.
muffler, blade adaptor, blade, etc.etc.etc..
That is just the quick 15 second list of the top of my head, there is a ton more too. If you are just looking to turn a profit you should just sell them as they are. Since they were given to you, it will be 100% profit. The first couple of restorations I did where mainly a learning process. Sure, I made money on them, but if I were to consider the time invested in labor, I would have to say that "I lost money". If you are looking to restore one or both because you are a fan or at least interested in these old mowers then the time invested in learning is of no consequence.