DIY ESS AMT HEIL Diaphragm?

Gday!
Long time observer, but infrequent poster.
recently i have been diving into all the youtube videos about diy tweeters and planar speakers.
particularly the work of joppe peelen which i have throughly been enjoying! (do check him out if you are not familiar, tho i think this unlikely 😛 )
I have an old set of original AMT heil tweeters, sadly one of the diaphragm is damaged, it has several small tears in the pleats, im going to try and repair it, but i really dont see it being salvagable,
seeing as they are the original diaphragms, i imagine if one is damaged it means replacing them both so they are matched ~$400aud. (ouch, budget is tight)
after watching all the videos and peeking about some posts here, im wondering if it would be feasable to try and make some diaphragms myself and if so im wondering if someone could point me in the right direction.
i have freinds with laser engravers, cnc machines, 3d printers etc and an extensive collection of gadgets and tools.
its always been a dream to make a speaker from scratch(ish) and i feel this could be a good start, or is it to much trouble and costs to be bothered with?
joppe makes it look so easy sometimes!

kind regards
lemonfuzzy
 
Relevant thread. There are many more, but this one includes a few people that might help your searches (including @WrineX, whom you'll recognize).

 
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