Well depends on the plant, some bullet prove plants are guava, mango, and dragon fruit. All these will grow well in containers are relatively drought tolerant and can hold up to low humidity or high humidity.
Now the temperature is the main issue with taking care of these plants. If you have to over winter them, you want to keep the temps over 32 degrees (I would say high 30s to be on the safe side). Also restrict the water during the over wintering (just make sure its damp).
Providing enough light to have photosynthesis continue is important as well, so a window with natural sunlight would be the best option. You can also use artificial lighting such as HPS or LED, this can get a little more pricey, but the HPS lights can also help with the heating.
There are different levels of how hard a tropical plant is. I recommend sticking to subtropical plants like the Mango, Loquat, Guava, Dragon Fruit, Cherimoya, etc. these are usually all cold hardy down to 28 degrees (which would be freeze death point). The tropicals like Acai palm, Jakfruit, Cashew, Papaya, etc. I have found to be a lot harder to keep alive and much more sensitive to soil and water.
As for pruning, root pruning and maintenance, I find that you can do this anytime during the prime growing season (they will usually bounce back). During the late spring, I like doing it in the shade during the afternoon on a moderately warm day. When the plants are actively flushing fertilize weekly with low to moderate amounts (if the tree responds well up the amount a little).