Extended Family Advice

My father was diagnosed with Stage IV colon cancer a year and a half ago. Previous to this diagnosis and increasingly more persistently afterward we encouraged and pleaded with him to move from Ohio where he lived alone to North Carolina with my husband and I. Understandably he resisted and wanted to live independently for as long as possible. His brother, my uncle, visited him for hours almost every night during this time and would often call me, teary, begging me to persuade him to move because he was "afraid" he would go to the house one night to find my father had died alone (a fear I also shared.) A month and a half ago my father's oncologist finally persuaded him to move with us - my uncle drove him and stayed for a few days. When my father was hospitalized for an inoperable bowel obstruction two weeks ago my uncle called and asked if he and my aunt should come down. I told him no because there was no need - my brother was coming into town and honestly I needed to focus on helping my dad, not hosting family in my already cramped house. The day after this conversation my uncle called to tell me he and my aunt were coming anyway because "they would never forgive themselves if they didn't come and something happened." So they came, they visited with my dad, they sat on my couch, ate my food, drank my wine and my aunt did a bang up job of annoying my father by constantly asking if he was in pain, how he was feeling and patting him on the head like a dog when she walked by him. After five days they informed me they were leaving but my aunt added that they would be back the following weekend. I told them not to come - that with everything going on with my dad it was just too much, that we needed time to sort it all out and get hospice in place, and that when we truly needed them I would let them know. They asked for updates which I have been giving but putting a bit of a positive shine on because I know what's coming. Today after getting their update my uncle responded "Please don't wait too long for us to see him - we will abide with your wishes. I know this is rough on you because it's rough on us." I understand his desire to be with my dad - it's his brother - I feel like a jerk for feeling this way but part of me just wants to have the time I didn't get with dad for the past year and a half (time my uncle DID have) just for my brother and I because I know it is fleeting and he is declining so rapidly. I guess I'm at a loss - should I ask dad if he wants them here again? Do I make a case for letting my brother and I have this time with him alone? I'm not sure what to do and I don't want to alienate anyone. Thoughts?