Bench test prep

Hello doctors, I am gathering materials for the bench test set up at home. And I was wondering if it is necessary to buy Kilgore/ AcAdental/ Columbia Typhodont? it is expensive and as I live in Canada it even costs me extra shipping and custom charges. On the other hand, can I just buy cheap compatible typhodonts from ebay and then shop for authentic practice teeth from their (kilgore/acadental/columbia) website? Has anyone done this before? Thank you.