There are quite a few Toth tarot books on the market. The easiest way to get reviews and a personal feel for that which you seek would be to go to Amazon and search for Alister Crowley Toth + tarot under books.
Hope this helps,
I think the court cards represent (in this spread) the three adults involved in your new family dynamics. The 3 of swords probably represents the heartache felt to varying degrees by all concerned from the immediate past. The Jack of Pentacles represents the message regarding the new circumstances and the fact that your world will be effected, especially materially, by this change. The King of Pentacles represents your father (and possibly your husband, too) as the mature men who will be impacting the situation, for good or ill. The Queen of Cups is the attitude that all of you, but especially you, will have to master in order for this new dynamic to unfold as smoothly and harmoniously as possible for the present and near future.
I agree that you will need to do spreads continually while this situation progresses to stay on top of what is really going on. Larger spreads con be more helpful when so many people are concerned.
Btw, you might seriously need to consider getting certified as a caregiver. It will help you master your situation with the least amount of stress to yourself and your loved ones.
Best of everything to you. You are a good person to take your Dad in.