@oristarA,
Tooling up = getting ready for.
Sticker shock = the shock and surprise of seeing how high the prices (in this case of homes) is. This expression derives from the practice of automobile dealers of posting the price of a new or used car by attaching a 'sticker' , i.e. an adhesive piece of paper, to the windshield. 'Sticker shock' thus has come to mean the shock you experience when you see how high the price is.
Going through his slides probably refers to photographic slides he has brought with him to be part of a job interview demonstration he plans to present. That's just a guess, not knowing the rest of the context.