Looks similar to old mates in thread:
www.seabreeze.com.au/forums/Kitesurfing/General/Help--Need-to-find-220-long-kiteboard-handle-?page=1#8

Except mine appears to have fat screws? I dunno. Apparently Cabrinha changed the size of the handles soon after this model - This board is from 2015

I love to pull hard and must of got carried away and broke it.

Would prefer a cabrinha handle, but anything is better than this broken one.

I will try the garden hose handle If no luck sourcing one

maybe some glue/ araldite? unless you really pull it hard, then you might need tarzan's grip