Fulll thesis from Word to Latex

I have a thesis developed in MS Word that I need to be fully reviewed in terms of layout for a highly professional layout/ looking. It seems LaTeX serves this purpose but I am not sure either if it is the only one of its kind nor if it is the most adequate for my purposes; you would help me select the best tool. It is about 500-page text containing approximately 80% plain text, and the remaining distributed across tables, MS math editor formulas, a few SPSS figures, a few images (jpeg, etc.), and a list of Endnote references. The text is fully grammar and APA reviewed. Hence, whatever tool you use for editing, it is crucial that you know the nuts and bolts of APA formatting. Once the deal is closed I will ask you to sign an NDA agreement. Many thanks for your attention.