Can a Westy match an SV for cabin space?

[Turn7]

Assuming widebody chassis and lowered floor and whatver seats are required, is it possbile to match the amount of cabin space in a Westfield when compared to a Caterham SV with lowered floors and leather seats ?

[Turn7]

Ok, Im 6'4 and 34 inch leg so thats usefull.

What seats do you have ?