Still, if we're just estimating, not an exact number but a very rough estimate...
How much would you want for adapting that hoplite? From start to finish. I.e., the final result – the creature in the game. And how much time would it take, roughly?
By the way, I watched that model at the time, so I have a rough idea of what it's like and how difficult this task is.
Roughly, if you only work on this, except for breaks for lunch, you could probably manage it in 1.5-3 hours.