Why do you need a chip in the first place and why do you want a bitcrane chip? Sidehack's chips are much easier to remove and acquire..? I'm sure someone is selling a board or a broken miner with at least one working chip on ebay if you absolutely need a bitcrane chip.
Sidehack is become kinda the golden example of making gear without a million in backing. You really do have to get resourceful like he did on getting chips from boards, as you need a lot of capital to purchase chips in most cases.
I'm ot sure why OP would want bitcrane. I still have not figured that one out, seems like better and or more popular options are out there.