Glad to see you put some miles on it! Nice trip for sure! Glad to see you're enjoying it. Now to start with the "fine tuning" as I call it.
On your power steering, If you have the whine inside, get someone to turn the steering while you listen under the hood. There's a good chance it's quiet under the hood. I didn't see what you used for hoses, but if I had to guess, it was braided steel. If that's the case, try replacing the high pressure hose with a stock one from something that the booster would of fit. I'm using a Chevy truck booster and mine whined inside the car. I changed pumps too, but it was still there. I used a pump from Turn One in Michigan and the owner, Jeff, looked at it with me at a show and that's when I found out it was quiet under the hood. What I was hearing is the fluid pulsating from the pump in those hard lines. Since the booster is bolted to the firewall, the noise was amplified thru the firewall. I used a pressure hose (from the pump to the booster) from a Chevy truck. I found a compression fitting to convert the one end to AN and tried that. All the whine was gone! The stock hose is larger and softer than braided steel hose, so it acts as an accumulator to dampen the pulsation. It's worth trying a hose first before replacing the pump. It took me a year to figure that one out.....
Also make sure your reservoir is higher than the pump inlet or that can cause that too.
You might have to put a anti drone pipe (also called a J pipe) in the exhaust if the resonator doesn't work. They're basically a Helmholtz resonator. That's what it took to get rid of the drone in my car (with a Hemi) but I didn't have any room for a resonator. When I build my Cherokee, I'll put one during the build so I don't have to redo it.