Want to replace the case

Good morning everyone.  I bought this nice Benyar 5185 from Amazon and I like it however the case aint worth a shit.  The bracelet fell off and won't hold spring bars, so Id like to replace the case .  I know shit from Shinola about frankenwatch making so how do I go about wanting to do this?  I know it's an ST6 movement and the dial is 31mm.  Thank you in advance 

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A new case will cost almost as much as the watch, truth be told.

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JaimeMadeira

A new case will cost almost as much as the watch, truth be told.

So free?  lol.  No really I got refunded the price cause I complained about it crapping out on me.    But seriously this watch would be my guinea pig on watch modding.   

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They sell cases and all sorts on Ali and eBay. About thirty or forty quid. Just search the movement and case. 

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JaimeMadeira

They sell cases and all sorts on Ali and eBay. About thirty or forty quid. Just search the movement and case. 

Do I need to be specific on measurements of the movement?  Guess I should've worded the post better.