"Pretty much the entire thing. She consulted with other doctors and an engineer we had on site initially, but it is all her design and surgical work. I dare say she knows how it functions better than I do."

There's a good chuckle to be had about that, at least.

"Ultimately it has been modified for combat, so it can take quite a few hits before it needs repairs." He indicates a knee, where if Engineer looks closely he can see where armor meets seamlessly to cover dark, corded material - likely that second skin he spoke of.