Hi mate, it may be worth you considering using the trade in available at Amazon for the PS4 Pro, there is a link on the PS5 page. They offered me £155 for my Pro and they say they honour the price offered for two weeks.
They send you a shipping label and you drop it off at a DPD drop off shop.
I haven’t shipped mine yet and I have no idea if they will try to haggle the value down when received.
Which page is the link, on please i have a pro so i'm interested in this...