Stage IIIC

My dad went through surgery for a tumor diagnosed as stage 2.  Now while recovering from that we are told 4 lymph nodes hve cancer cells making him IIIC.  My dad is 80 and quickly losing his will to fight.  Anyone have similar circumstances and the options that were laid out?  I don't want lack of money and his age to be deciding factors of treatment offered and curious to hear from other who have been here.  We are told now that Chemo is option for the lymph nodes and to worry about that later after healed and better from surgery.  Makes sense but I want the best for my dad.