Actually right after I posted those screen caps and asked the question you answered above, I took the plunge and installed the gapps file. Worked perfectly. There are things that will take some getting used to, such as where the Widgets are hidden instead of where they are in the stock Android library, and that the Home page is now whatever is the further to the Left (I liked the Middle desktop pane better ..... can that be changed?)
Two questions about being rooted and this custom ROM -
1) If this is not the latest KatKiss 4.4.4, can I (how do I?) "upgrade" without wiping everthing off the Tablet again?
2) I noticed that there is an entry selection in the Setup for "Ethernet" on or off. Since the TF101 has no Ethernet port per se, what is this for?
Last - I looked over the KatKiss website, couldn't find any documentation about what's in KatKiss and what you can do. Do you know of any "manual" for KatKiss 4.4.4?
Thanks so much for your help. This old Unix/Windows/Mac IT guy is learning something new.