The cheapest way to get my 3D printable model is to subscribe to my Patreon page about dinosaurs and other extinct animals: https://www.patreon.com/vfb_paleoart
You'll get 5 stl files:
HEAD
BUST
WAIST
TAIL
BASE
All the pieces are keyed. You cannot resell the stl files, it's only for personal use and display. You can preview the statue here: https://www.prometheus-studio.it/paleoart/ACROCANTHOSAURUS/