Haven’t heard it -of II. My second japanese press of 1 is special, and not crazy money, but I can’t make the leap of faith from that to a japanese pressing of II.
I thought the Jimmy Page sanctioned reissues from a few years ago were great for people who wanted clean playing copies--but they sounded vey sterile to me. I only bought the first three, listened to them in comparison to some other copies, and eventually, they went out the door with about 5-7000 other records before I moved.
As to the 45s, you’ve already got my comments and mike lavigne’s. Generally, those were only available as part of the complete road case, which is now stupid money, and some individual albums here and there from The Music and/or Hobson and a few third party vendors, including test pressings and the like, also pricey.