What is your job title? If you don't have a job that has a translated word in Thai then there will be problems and delays. But if you have a job like engineer or something you should be fine. You have to take a lot of photos of you and your wife outside your residence with the address showing and you on your bed together and in each room of the house etc. You should consult with a professional and NOT Facebook for legal advice.
I've seen it done for 7 days for countries like yours. Still costs 1900 bhat same as 30 day visa extension for other countries. They will probably let you do it. I wouldn't worry. But if you want to stay longer you should see an agent.