The only information that we had translated for two Visit Visas and a Settlement visa were the GF's divorce papers. In your case you would need the marriage certificate translated. You don't need her birth certificate and you don't need her passport or ID card translated. They are both in Thai and English already. The only items we used for proof of relationship were photos and a few flight bookings/boarding cards and hotel bookings. The house here in the UK was a mortgage statement, a photo of the outside and a council tax bill.
Just my experience but it sounds as if you may be living in Thailand although you didn’t say so? If so you need to check on house and insurance info.