Hi

Depending on your skillset, try getting an employer in australia to sponsor you. Both you and your wife can write in to potential employers.

It will cost them less than a couple of hundred bucks to lodge a business sponsor visa 457 for you.

After working for the same employer for 2 years, they can nominate you for a permanent visa 186.

If you go by this way you will save a lot of headaches like ielts, skills recognition etc.