Old bikes, very old bikes. Can't tell what kind of running gear is installed on either one. Don't know the cost. Don't know your "rough" size needs. Finally, if you are buying a bike to commute, buy a commuter bike, not a road bike. Road bikes aren't good for commuting.
If the Univega is a touring bike as stated, it should have attachment points for at least a rear rack and probably fenders. Assuming the bike is in good condition (which is very possible with the Suntour components) and assuming the bike fits you (this is the most important factor), it could be a very fine commuter.
It should be worth taking a look. If you have a more experienced friend who could go with you to see the bike, that would help a lot.