Those are good temps. I went with this extension cable for the bottom fans: https://www.amazon.com/gp/product/B00KG3K9AM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Along with this y-splitter: https://www.amazon.com/gp/product/B076542HBN/ref=ppx\_od\_dt\_b\_asin\_title\_s00?ie=UTF8&th=1