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Do we have breaker family rated 800VAC and with 35KAIc?

No, not in a molded case product (1000VAC mining breakers are rated 14kAIC at 1000Y/547VAC). 
 
We do have a 3200A Magnum IEC (power breaker) frame that is 35kAIC rated at 800VAC and 25kAIC rated at 1100VAC.  Rating plugs are available from 200A to 3200A, for this breaker.
 
The IEC Magnum instruction book is available here:
 
The IEC Magnum technical product guide is available here: