PCV System

I've been slowly repairing/replacing wearing parts on it as needed. I bought the car with 100,000 miles on it and it's run great to date but I recently changed the oil, oil filter, air filter and pcv and during the process noticed that the hose connecting the pcv to the manifold is somewhat dry rot at the pcv connection and the rubber elbow connection at the manifold is collapsing which seems to be restricting air pass through. Now although I am somewhat limited in knowledge, I do believe that this is a vacuum hose and I would like to replace it but there's one small problem... I can't find it anywhere. I looked up the nomenclature for it and it is described as an oil separator hose; is there another name for this? Do you know where I might be able to locate it. One other hose that needs replacing is connected from the valve cover to the air filter box; is there a name for that and again, any ideas where I can find it? Generally, it seems that these types of parts are difficult to locate, do you know of a general source for them? (See hoses intersecting in attached photo)

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