We eventually had to feed through the port as my husband could not handle any kind of Kangaroo type feeding either.
This is very expensive but ... it worked.
We would attach it around 9pm and it would slowly drip until 7am . As Anita said, he would be surrounded by lots of pillows to keep him partially upright.
Grab one of these nurses and make them pay attention ... the oncology clinic can order all this for you.
He needs the nutrition and you need the Docs to tell you the best way for him to get it.

Best Wishes
Marica