Here are some size for you to consider
1.L:5 m ,W:0.7 m ,H:1.4 m
2.L:8 m ,W:1.2 m ,H:3 m
or customize is oaky ,it can of course be created in any design you like

Basic movements below
1.mouth open and close synchronize with the sound
2.neck to head moving left to right-up and down
3.stomach breathing
4.tail swaying
5.eyes blink.

Accessoies
1. Control box with one free spare.
2. 2 speakers build in woofer and volume controller
3. remote control,sensor infrared control
4. Fiberglass rock to hide speakers and control box.

Application
1.outdoor and indoor playground equipment ,amusement park equipment
2.Museum exhibits,theme park exhibits ,science center
3.Educational materials at school
4.Park decoration ,business attractive
5.Dinosaur museum ,dinosaur show