Hello! I'm Caleb, the costume sergeant for Taakure Clan in Indiana. You're off to a good start. I do have some suggestions for you in regards to your soft parts.
First of all, your vest is starting to take shape and its looking pretty good! Looks a bit baggy in the back a bit in the photo with you lifting your arm up. Although the vest will sit on top of your flightsuit, it still needs to be form fitting to you.
Second, taking a look at the flightsuit itself. What i would recommend is long sleeve medical scrubs and matching scrub pants. They are pretty easy to find and affordable. They will need to be tailored to eliminate bagginess. I wouldnt advise the long johns you attached the link to. Scrubs are easy to get into and just look a bit nicer.
third, your kama. The kama shouldnt be attached to the vest. It should be a separate item along with your girth belt and the belt you'll use for your pouches and gear.
The way I wear my kama is quite similar to my belt. Its made out of thick material and there is a sewn in loop at the top that allows a belt to slip through. I then wear my mando belt over it to hide the other belt.
Your girth belt should be a separate item too.
Those gloves look good. I would weather them and add hand plates to them.