If things are moving too quickly for you, particularly regarding the port, have a talk to your onc about holding off on chemo until it is ready. Many of us have had multiple delays in our treatment; if a couple of days is going to be make or break then I , for one, am doomed. The whole business is like being in the army anyway---hurry up and wait.
I'm mid treatment now and am also struggling with the future logistics of radiotherapy once the envenomation is done. If I want that treatment it will be a major upheaval to get it, that is what it is and I have to decide if it is doable. Accessing cancer care if you live in the country is a major and well documents problem. There will be some workarounds out there for you, it just may take a little while to find them. We will help if we can.
It's all so terribly new for you but please, if you can, try to look at your position of one as 'project manager'. You will have a surprising amount of control over this process if you choose to take it. The early stages are the worst, but you do have choices and you do have access to information which will help you get your head around what is happening. Marg.