Hi, newbie question. I'm keen on a book auction that closes Tue 19th Aug at 9pm. If I win the auction, is it okay if I pay the next day Weds 20th August at around 8pm? Is this common to pay the next day, would it be a problem? Thank you for any advice

Hi, Im new to bidding, how much is usually recommended to bid on an item please? The item starting bid at $45 with no reserve and no bids so far, and it finishes next Sunday. Any recommendations appreciated thank you!