You can add the bowl for feeding anywhere and they will go to it.

As for the heat, I like the red night bulbs since it lets me see them at night but you might need to hold off on that until they are comfortable in the new enclosure. Try it and if he hides all night then shut it off.
Your UTH should probably be placed on a side where the heat can go through the glass and not have to work its way through the foam.

You probably want your tank to be about 68 at night. 60 might be a bit cold for him. If your air temp in the tank is too cold you'll probably find your frog close to the UTH.

Your tank is coming out beautifully.
Oh and my Irish Moss never did well for me since the dart frog tank I had it in was too wet for it.

Don