Replying to The Great Boot Dilemma

I just started working at my local shop and now get pro deals from literally every major company. I have been in the market for new boots for quite some time and the pro deals and forms give me some killer deals from brands such as Dallbello, Full tilt, Nordica and Salomon. The shop I work at mostly caters to racers so they basically only carry racer oriented boots and gear. I know that everyone HATES this question but how should I order a boot that I can't physically put on until I fully own it? The boot fitters at my shop are bros and said that they can definitely get a mold and do adjustments for me but told me to just research boots and order my favorite. In need of some boot advice