I'm sure your dealership would be thrilled to give you a tank and not have to deal with installing it. I've done this a few times for trucks getting V8 swapped here.
My local dealer has spools of bulk 5/16" and 3/8" fuel hose from carquest that they use in the service department, and I have had them do two tank recalls for local clients in the last year :meh:
Its not a big deal to mod a new 60 tank for EFI. I sell a kit and so does @FJ60Cam.
If you really want to drive your 62 forever and you badly need a fuel tank, then $1k or so should not be a huge expense in terms of keeping a +30 year old enthusiast vehicle on the road.
When it becomes a...