Assuming the average guy is 6 feet tall (72 inches), this model is probably just over 3.5 inches tall.

 

I don't have one of these, and the obvious answer would be to "build it and you'll see how big it is"...! However, since you asked, here's an answer. Sorta.

1/20 scale:

Your ruler / scale size

12 inches/1 foot = 20 scale feet.
6 inches= 10 scale feet.
3 inches= 5 scale feet.
4 inches= 6.66666(ad infinitum) - call it 6 2/3 scale feet. Or 6' 8".

Depending on just how much bigger the suit is to the human pilot, it will be over 4" in height, but should be less than 6". Since I'm unfamiliar with the kit in question in terms of the plastic.

 

Have you been to the kits site yet? it may be covered here http://www.maschinenkrueger.com/tips.html
click on the models tab your kit is on the left first one listed under Ground Based Units.

 

Bragstone, thanks for the link!

Okay, the "technical data" gives the height of the suit as ranging from 1.75m to 2.05m. Translated to Imperial measurements, that is within a quarter inch of 5' 9" and 6' 9", respectively.

So that means that the model will end up between 3 1/2" and 4", or just a shade over. Huh, isn't that something? That suit is basically just armoured clothes and surface-mounted weapons - metaphorically speaking! LOL!

 

Thanks guys. I appreciate it.