I posted a Fix It (or wiki?) on re-rubbering the high-side power steering hose. As shadetreemechan stated, it uses "field-repairable" fittings (Gates?) which you can unscrew with box wrenches. The SLS hoses on the wagons are similar (where I learned). The shell screws onto the OD of the hose, while the inner mandrel (tube side) screws into the ID of the hose. One is a left-hand thread, I recall the shell which has a smoother "lightbulb" type thread profile. Factory hose has nylon tensioners, but I used 2-wire "hydraulic hose" (3K psig rated, ebay or Tractor Supply). The low-pressure hose just slips on. I posted possible part numbers in the article.

Re other hoses, to look slick buy a MasterCool crimper and ferrules (ebay, sell on when done). You can make your own AC hoses and oil-cooler hoses (parts on ebay). Instead of ferrules, you could use Oeticker stepless ear clamps for a slick look (nail-puller as crimper, or Home Depot PEX crimper). Even worm clamps can work, as aftermarket AC in the 1970's used those (Breeze smooth worm clamps are best).

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans