It was made twice in HO. First imported by Balboa, made by KTM. Then in 1980 Custom Brass brought one in made by KSM.
I have the Balboa version. Good quality for the time.
Can't help on an O scale version though Custom Brass did many O scale models.
I don't have Deimling's book but do have Guy Dunscomb's book.
There were 8 made and came with the square tender pictured above. They renumbered three times. 4501-4508 were the last set of numbers. Guy has a pic of 4501 with an 0-6-0 round tender (semi vanderbilt??) swapped at a later date.
Further reading, there were 27 0-8-0s all together. 1 SE-1, 6 SE-2, and 12 SE-3.
Pete