The original version of Mr.Foster is here: https://modworkshop.net/mydownloads.php?action=view_down&did=562
Since the suit is broken now and the author didn't do anything about this, my friend and I tried to fix it. Maybe not perfect, but we did our best.
The head of Mr.Foster is from the original version, and you can also get the gas mask from the original version.

Update 1:
Fixed a small problem of collar's color.