Step 1:
scorpio-baseplate
Step 2:
scorpio-leg
Step 3:
scorpio-ramp
Step 4:
scorpio-underside-greebles
Step 5:
scorpio-sidewall-posts
Step 6:
scorpio-inner-walls
Step 7:
scorpio-rear-centre-roof-1
scorpio-rear-centre-roof-2
scorpio-rear-centre-roof-3
scorpio-rear-centre-roof-4
scorpio-rear-centre-roof-5
Step 8:
scorpio-centre-roof
Step 9:
scorpio-front-centre-roof-1
scorpio-front-centre-roof-2
scorpio-front-centre-roof-3
Step 10:
scorpio-front-centre-sidewall
scorpio-rear-centre-sidewall
scorpio-left-sidewall-1
scorpio-left-sidewall-2
scorpio-left-sidewall-3
scorpio-left-sidewall-4
scorpio-left-sidewall-5
scorpio-left-sidewall-6
scorpio-left-sidewall-7
scorpio-left-sidewall-8
scorpio-right-sidewall-1
scorpio-right-sidewall-2
scorpio-right-sidewall-3
scorpio-right-sidewall-4
scorpio-right-sidewall-5
scorpio-right-sidewall-6
scorpio-right-sidewall-7
scorpio-right-sidewall-8
Step 11:
scorpio-rear-left-roof-1
scorpio-rear-left-roof-2
scorpio-rear-left-roof-3
scorpio-rear-left-roof-4
scorpio-rear-left-roof-5
Step 12:
scorpio-rear-right-roof-1
scorpio-rear-right-roof-2
scorpio-rear-right-roof-3
scorpio-rear-right-roof-4
scorpio-rear-right-roof-5
Step 13:
scorpio-centre-left-roof
scorpio-centre-right-roof
Step 14:
scorpio-front-left-roof-1
scorpio-front-left-roof-2
scorpio-front-left-roof-3
scorpio-front-left-roof-4
scorpio-front-left-roof-5
scorpio-front-left-roof-6
Step 15:
scorpio-front-right-roof-1
scorpio-front-right-roof-2
scorpio-front-right-roof-3
scorpio-front-right-roof-4
scorpio-front-right-roof-5
scorpio-front-right-roof-6

Step 16:
Random other items