I took two days and Sporting Kansas is by far the most expensive. Simply because you can only use 5 USA players, so all the other players are close to 10k or not even on the market.
But with the rewards from the packs (❤️❤️❤️❤️ packs btw) and the coin boost I paid 118k for Giovinco. So if anyone wanted to know the price, here you go. It takes some time sniping, but eventually you can do it for just over 100k.