Power steering leaking a lot of fluid

Get the replacement one first so you have something to look at. You might consider visiting a pick-your-own-parts salvage yard to get a used hose. They don't fail often so a used one will likely be good. Do a search for "Pull-A-Part" and see if you're close to one of their 23 yards. I've been to 16 of them and they were all very clean and well-organized. Employees and customers are very friendly and parts are real inexpensive. You pay your buck, throw your tool box in one of their wheel barrows, and you can spend all day there. The cars are well-supported off the ground too so you can crawl underneath. You may find out you don't want to tackle the job on your car, or you might find out it's not so difficult.

If the hose has threaded nuts that swivel on the end, clean those up with penetrating oil and / or brake parts cleaner so they spin freely, then always start them by hand and turn them in a good two or three turns. That will insure they aren't cross-threaded. Cross-threading will damage the steering gear and it will not be acceptable as a core when you buy a rebuilt one.