I always bring my summer plants indoors to finish, and never once have I managed to stay completely bug free. Since my plants are already in midflower I don’t do anything to them. If I were you I would clone Outdoors and once rooted, treat the cuttings as you would any other plant that has issues. I just successfully rooted a cutting outdoors in full sun in a half pint ball jar with an inch and a half of water and a fish bubbler in it. Just protect the water from sun exposure by wrapping it with something or burying it in some dirt like I did. It’s also possible to clone whole entire branches by treating them as you would a shorter branch and sticking them in some dirt under a tree with filtered sun. @Tejas just did something similar with Malawi, but indoors. You would have to wait until the daytime temperatures are in the 70s for this to work . Aphids and Spider mites are the two pests you probably need to look out for.
The treatment my cousin gave his cuttings out west was a product called clean green and we completely dunked the plants into it. You could do something similar with neem oil and dunk the whole entire plant and it would definitely kill spider mites and aphids and their eggs, but I recommend clean grean if you can get it
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