First you need to set up the "store categories" you want to use.
Then you need to revise the listings. You only have 119 listings so it should not take that long.
You can revise individually - I would guess about an hour or so (30 seconds each)
or you can "bulk revise" grouping the listings by store category you want to use. Frankly, I do not think that would be any faster and there is a much larger risk of making mistakes.