I do hope both of these eventually come to pass! Baby giant otters and any kind of sloth are a rarity in the UK, as I recall.
If Chester were to breed their Giant Otters this season it would be only the second successful UK breeding (after the Chestnut Centre's well-deserved first breeding only last summer).
Sloths are actually quite a bit more common than they were a few years ago (at least Linne's Two-toeds are), so I'm a bit surprised they're proving that hard to get hold of. Admittedly they don't seem to be breeding quickly so there may just not be any surplus anywhere.