Iron man 2 pep scale

Hi guys, not sure what the best way to check scale of pep files so that it will fit me?

Not even sure who's files are the best to use. I have found some from different places but it's likely that they are all the same files.
I am going to try and make the helmet first.
My height is 178cm or 5'10".
Something tells me it's a case of trial and error in some cases.
I am not sure if certain parts will determine the size of the next due to possible overlaps.
Also, I want to add the computerized parts and that stuff needs room right.
So I am not really sure and don't want to waste time building something that doesn't fit.

 

Scroll through a few pages or use the search box, lots of topics on this. There are in fact several Iron Man topics with the answers you want on the front page, currently.