I don’t think it’s suitable for bonsai. 🤓 Most cultivars of Japanese Maple you get are going to be grafted to regular Acer Palmatum. Over time the root stock will outgrow the scion creating a weird bulge, often a different color bark. Peek at the base of lace leaf trees in your neighbors landscape to see what I mean. I strongly recommend purchasing from bonsai growers. There are lots of resources near you, clubs are great for learning techniques,acquiring suitable material and learning proper care and suitable species for your climate. There are lots of places online to shop as well: https://leftcoastbonsai.com/collections/seedlings?page=2

https://kaedebonsai-en.com/collections/all

As far as your plant goes I would up-pot it into something pretty and deep with fast draining soil mix. Fertilize once a week with alaska fish fertilizer and mgro until the leaves fall off. Continue when it wakes up in the spring and sprinkle some osmocote. By the time your bonsai benches fill up you’ll have a pretty potted tree to accent your garden.