Hey Vod, echoing Merky getting in contact with your local clan (
Meshurok Clan) will be the most helpful for you. There may even be some Vod closer in the tri-cities area across over in Washington from your current location there in Moscow/Lewiston. Random but some years ago my wife and I took highway 12 and drove from Rexburg past Lewiston/Clarksville up to Yakima one trip.
Since you are up a ways from Boise area, I'd recommend reaching out to local sign shops in the area like Cutting Edge Signs or Image 360 Moscow to see if they have any 3mm / 1/4" sintra (might call it a different name) as those are local. They might have some scrap pieces that would work for your kit. I'd suggest a Modern Era kit for ease of availability and cost as a poor college student. If you make a kit without a backplate you should be able to get all the pieces
templated on a 24"x24" sheet. I've also seen some Vode order it online like Amazon for delivery to more rural locations. This section (Female Armor) you've posted in has lots of great tutorials for chest plates and how to make darts or other curve chest plates.
There are some more affordable options for making a helmet, such as using a plastic 5 gallon bucket. What you sacrifice with the cost being less, is it will take more of your time to make. Fiber Resin route less time but more $$. PLA/3D print means lots of sanding,
I mean a lot of sanding. I'd recommend instead of grabbing black series helmet is to wait for May 4th this year and look for sales in the $100-120 range for a good fiber resin helmet. They are out there.
I help build my brother,
Gravlax's kit on a budget back in 2019 (total $500). You can always do for less with more time devoted from doing it yourself, but that at least gives you a good budget to work with. Now if you already have a good pair of boots to use you could drop off the $150 value and then your only big expense would be the helmet.
Good luck to you Vod and feel free to reach out with any questions.