It takes a six to eight hour farm to get the parts to make the dwemer construct non-combat pet (roughly, your mileage may vary). You can trade or sell your extras to get the parts you need. It took me approximately 12 hours to get enough parts for two pets and I even had several extra parts which sold for 30,000 gold each on the guild trader.
Still working on the costume parts...sigh. These parts seem harder for me to get for some reason and I've already invested about eight hours into this grind.