Islamic studies by Hafiz Karam Dad Chughtai. This book covers complete syllabus and I think it's more than enough.
If you want to add some stuff then take lectures of Israr Ahmad, Ghamdi, Ali Mirza, and any other scholar that you find good.
Do cover sections of Islamic Banking and Islamic Finance system , with it go through past papers, there are some questions that are analytical in nature but good thing is this that they keep on repeating.

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''Sufficient for us is Allah , and He is the best Disposer of affairs" Al-Quran