Forget getting chips. The BE200 is long long long out of production. To the chip Foundries miner chips are boutique items and are produced in very limited numbers so zero chance of finding unused chips. Only hope is to find dead miners and harvest the chips from them.
As for dead Ants -- where are you running them? I have had over 100 of them from s1 up to the latest s9's and have had very very few problems even with my s9's. Zero dead ones. Ever. Bitmains R4, ja POS -- have 3 of them, 2 are perfect, 1 lost a hash board within 25hrs of starting.
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I was running them from home with portable AC units on each one. in separate rooms.
At the end with the BTC value increase I get the invested money back but with the difficulty increase I am hesitating to buy another S9 and not get the money back before it crash.
I guess I have bad luck or maybe because I bought 1 at a time Bitmain just send units that were sitting there with no much care.
I can't see any link to order from the Bitmain website everything is out of stock.