I'm always advocating adopting a podenco from a recognised established rehoming association which will make detailed homechecks and follow-ups, and who will also be there to take the dog into their care should the adoption fail for whatever reason. So, to have a podenco sold on Gumtree (it's not the first time a podenco has been advertised on Gumtree or Preloved) and another in a Scottish refuge (however good the refuge is) is unacceptable.
It is also unacceptable for someone in the UK to consider adopting an overseas rescue dog for breeding purposes. Reputable rehoming associations sterilize their dogs before they are homed.