I'm also glad to hear that your Mom is allowing you train the new kitten instead of making you delaw it. When the kitten gets older you may want to buy some catnip spray to use to spray the scratching post. I'm not sure how old a kitten needs to be in order to be affected by catnip. I use it and all 4 of my cats love it.
I hope the introductions will go well. Just take it very slowly. Good luck and I look forward to hearing and seeing more about your new kitten.