Hello Chrissk,
sorry you are here but it is a good place to come for support and advice.
I have had similar to you, IDC stage 3, 2.3cm tumor, same receptors. I had TC chemo four rounds, 3week cycle. For me the side effects where different and worst every cycle. Your question about port or catheter would depend on length of cycles and how many you are up for. I had a catheter put in each time, really no problem, I made sure I was very hydrated before hand. Some nurses are better at putting it in then others but I got to know which veins where best and advise them. What a steep learning curve of medical terms and your own body!
I am sure you will receive good advice from your medical team. I feel cold mitts on my hands preserved my nails ( which I have keep covered with dark nail polish) and I only had minor numbness in my fingers. My feet on the other hand were ignored in this respect and on 3rd round became hot red and painfull. When this happened I soaked them in cold water which helped me though the 4th round which had to be reduced, they are peeling now but I think if I had done the cold treatment earlier they would not have become so bad.
I had first rad today and am on Tamoxifen, the next adventure! ha, but life is still good.
Hope this is some help, all the best with treatment.
Kim