Hi Stu,

I've owned both Hawk Stratos and an S1 Elise Millenium.

Nobody else can supply you with fibre glass Stratos centre tub, other than Hawk or LB.

The Elise wheelbase would lend itself better to make a Dino replica.
The Elise and Stratos have a similar track, but the Stratos wheelbase is way shorter than the Elise.
There is an LB LWB (Le Mans) Stratos replica which might fit, but it's not as nice looking as the standard car.

Can you measure the distance between the inside of the Elise sills?