I want to buy Iphone 17 Pro Max in Osaka

Hi, i´m a mexican guy and i going to travel to Osaka in 28th march, i have 14 Pro and i want to change it for the 17 Pro Max 256 GB but i only going to stay 4 days in Osaka, mi Iphone it´s in good condition and i want to know hoy much time do i have to wait in Osaka to check my Iphone and buy the new one... i saw in internet that the price it´s 144,800 JPY, i´ts ok? Thanks, i hope you can help me