Love your truck and how you have it set. If you're going to be traveling solo, there's no reason to drive a much bigger land cruiser. If you can't locate a shell locally, you might want to look into a custom made camper. I know that near me there is a fairly well known custom camper builder (Callen), so I would guess they exist elsewhere too. Even a boat/canvas shop may be able to make a nice soft top. If you have a sliding rear window, I'm sure you could build a little platform with a bed near the cab for your pouch.
I've owned an 85 pickup, 85 4runner and an 86 pickup. A few years ago I decided that I would like to try an FJ60. I thought, "Hey I've been maintaining 80's Toyota's for 15 years, an FJ60 won't be any harder". Well, I quickly learned that everything is much more expensive, especially buying from the dealer or any of the Cruiser specialty shops. I was planning every day off around what I needed to do to the cruiser, not really enjoying all the things that I had a four wheel drive for. I also never got used to 12 mpg. I finally decided to get rid of the FJ60 and keep driving the reliable, relatively efficient pickup truck.
This is just my experience and I know that the 80 your looking at might be in much better condition, but I still say keep the truck.
I've owned an 85 pickup, 85 4runner and an 86 pickup. A few years ago I decided that I would like to try an FJ60. I thought, "Hey I've been maintaining 80's Toyota's for 15 years, an FJ60 won't be any harder". Well, I quickly learned that everything is much more expensive, especially buying from the dealer or any of the Cruiser specialty shops. I was planning every day off around what I needed to do to the cruiser, not really enjoying all the things that I had a four wheel drive for. I also never got used to 12 mpg. I finally decided to get rid of the FJ60 and keep driving the reliable, relatively efficient pickup truck.
This is just my experience and I know that the 80 your looking at might be in much better condition, but I still say keep the truck.