It looks like a pretty straightforward endeavour, and it's not a long shot to get it all back to stock. You'd Just have to search classifieds, and post up some want ads. Good front seats are getting harder to come by, but they're out there. Carpet kits are available, try ACC. Rear seats come up every so often.Another interior shot. It doesn’t have to be 100% full blown OEM fabric, door cards/panels. I know that’s a long shot.
Any estimate on cost?
Here’s another option (that you didn’t ask for): buy high-quality seat covers for the front and rear and then see if you can live with the door cards. Specter makes very good fitted cordura covers - not cheap but a lot cheaper than re-upholstering. And they’re washable.
Land Cruiser 60 & 62 Series Tuff Duck Slip Covers - https://www.sor.com/cat309e.sor
Personally, the door cards would have to be changed, there are several builds converting to leather/vinyl so that may pass depending on your preference and finding OEM seats/material could be slow/difficult/expensive.I'd definitely look to buy used door cards and swap those out. They seats really don't look bad IMO. I'd keep them. It'd be a lot more time and money to get those back to stock. Grey Seat Covers / Front FJ60, FJ62 1980-1990 - https://cruisercorps.com/products/seat-covers-front-fj60-62-grey?variant=12736793378882¤cy=USD&utm_source=google&utm_medium=cpc&utm_campaign=google+shopping&gclid=CjwKCAjw64eJBhAGEiwABr9o2BHwyPJpzUFBi9faXoa8p6VRbFIfNZ2CHDdcuDL-x5SK4E2b5Xj4-hoCR4YQAvD_BwE
Even though that's a nice wheel on other Toyota 4x4's it really looks atrocious on a 60 IMO. Would go with something appropriate from that era. And please, no black wheels! Console with stereo inside is a bit lame too. That may need to go, along with cupholders. OTOH, they're functional...