The peg vs no peg will really not become an issue until till the later stages of Tx and a few weeks post Tx. Until then he will start to loose his taste and then his saliva (in different stages). Loosing his taste will be his first challenge mentally to overcome. He will need to let that taste issue go and just accept it and find something, anything that he can still eat/drink to get his daily calories. Tell him that what he finds appealing today may taste horrible tomorrow and thats normal. I know I would find something that tasted great and I would tell my wife or she would just take it upon herself to stock up on it only for me to hate it the next day or so. Warning...don't fall into that same trap.

Just remember his body will be undergoing constant change from now until 18 months from now so just make sure he's prepared for a longer haul than most doctors are willing to admit. You will hear that we all are different but the majority of us experience the same issues. If I had to do a Bell Curve and based SOLELY upon my observations on this site and my off site experiences I would say 10% fare better, 10% fare worse and 80% fare the same. Lets hope he's in the better category.