Olea visits her hive, and some bad news for #2

Olea got to use her bee suit this past weekend.  We looked in the nuc, #2 and Olea's.  She had no fear of the bees buzzing about her and the only problem was getting a good view into the boxes.
When we looked into Olea's, I inadvertently broke two comes filled with capped and uncapped honey, so we took out the broken pieces for an unexpected honey harvest. 
We checked the nuc to see if they were taking their pollen and syrup.  There was still plenty of each.  I fear that there just are not enough bees in the nuc to survive.  I had considered moving a frame or two of bees from #2, but than plan was shot down by what we saw in #2.
There was plenty of honey in the top box of #2, at first encouraging.  But then I saw the brood.  The pattern was spotty with several uncapped cells with dead pupae.  Also, I saw 3 bees with deformed wing virus.  This probably is Parasitic mite syndrome, but I have unrealistic hopes that the dead pupae may be from being chilled.  I had treated this hive and believed I had the mites under control, so what could have happened?  I think I know.
Not far from here is another backyard beekeeper.  He had 6-7 hives and believed in no treatment beekeeping.  This has become controversial in the beekeeping world with the main objection to it is that when an untreated hive dies, the mites get into (often by robbing) surrounding hives.  I noted that my neighbors bee yard is now just stacked boxes, so I assume his hives succumbed.  And my otherwise healthy have was overwhelmed by the mites.
In any case, #2 is very sick and I do not expect it to recover.  I did treat it with Apiguard and will hope for the best.  If Olea's survives, I may try to make splits from it.  Otherwise I can either buy new bees, have only one hive or hope to capture a swarm.

Can this nuc be saved?

Today the rain stopped and it warmed up a bit, so I was able to take a look into the nuc.  I made this nuc as a walk away split last July using #2 as a source.  The nuc seemed to be thriving and I had intended to use it this spring to replace the lost #1.
However, over the past 1-2 weeks I noticed decreased activity at the entrance and was awaiting an opportune time to inspect.  It was not quite 60 degrees this afternoon but I took a look.
There were not a lot of bees, only a hand-sized cluster on 2-3 frames.  There was no honey, no pollen and no brood, only empty cells (with a scattering of crystallized honey).  I did see the queen, though.
What to do?  They obviously needed resources and fortunately I still have some pollen patties.  I got one and put it on top of the frames.
Next, carbohydrates.  Unfortunately the entrance feeder does not fit in the nuc doorway.  Fortunately I have some inside feeders given to me by Bruce.  One of them had a cap and ladders and is a double frame size, too big for the nuc.  The single frame feeders have no cap.  I could use them, but I do not like the idea of some bees drowning.  So I did what Eddie would have done- I made it myself.
I took the ladders (plastic mesh tubes) and cut them to be the correct length and then made a "cap" from aluminum foil, using cellophane tape to hold down the edges.

I filled it with 2:1 sugar syrup and replaced one of the outside frames with it.
Perhaps the nuc will survive.  If not, I will be making 2 or 3 splits this spring.