Wanted to borrow: cement mixer, Salvador

I'm Felipe in Salvador. I'm decorating my daughter's room before she comes home from hospital, and I need a cement mixer for a few days. Buying one for a single job doesn't make sense and the rental price is more than I can manage right now. If you have one gathering dust in the garage, I'd be grateful to borrow it. I'll collect it from you, look after it, clean it and bring it back on the day we agree. I'll leave a deposit if you'd like, and I'm happy to meet somewhere public the first time. If you could also show me how to use it safely, that would be an extra kindness. Thank you for reading. I'll look after whatever you can lend.