3.) I'd trade all of my items for pets/C$. I value most items at 1 item = 1 C$ except for very old items. Exception: very small items (ex: single sprinkle) are 3 items = 1 C$
4.) Wishlist isn't required if it's a trade up!
5.) I don't use the 2:1 rule. I estimate a pet's worth in C$ and trade based on that estimation.
BELOW common are usually 2-4 pets = 1C$ Commons are usually 0.5-2C$ Uncommons are usually 1-3C$ Very Uncommons are usually 1-5C$
Extremely Uncommons 2010/2011 EUC are around 8-10C$ 2012-2014 EUC are around 6-8C$ 2015-2017 EUC are around 5-6C$ 2018-2019 EUC are around 4-5C$ 2020-2024 EUC are around 3-4C$
RARES 2008/2009 Rares are around 40-50C$ 2010/2011 Rares are around 25-35C$ 2012-2014 Rares are around 18-24C$ 2015-2017 Rares are around 15-20C$ 2018-2019 Rares are around 10-15C$ 2020-2023 Rares are around 7-10C$ 2024 Rares are around 5-8C$
REGULAR VERY RARES 2008/2009 Very Rares are around 100C$, but low demand species will be cheaper 2010/2011 Very Rares are around 50-70C$ 2012-2014 Very Rares are around 40-50C$ 2015-2017 Very Rares are around 30-40C$ 2018-2019 Very Rares are around 25-30C$ 2020-2022 Very Rares are around 20C$
Some pets have higher demand (ex: 2019 fae foxes) so I value them higher! I check Horror's guide for their individual evaluations.