I have an old prebuilt, and im looking to upgrade everything for £1000

I have the Veno Scorp (chinese brand) PC and I am looking to upgrade it.

• New build or upgrade? Upgrade.
• Existing parts/monitors to reuse? (List with models/links) HDD (HP MB1000GDUNU) and the case listed at the amazon link.
• PC purpose? (Gaming, editing, etc. List apps/games) gaming and content creation
• Purchase country? Near Micro Center? (If not US, list local vendors) UK, Amazon UK, Overclockers UK, Scan UK, Currys pc world.
• Monitors needed? (Number, size, resolution, refresh rate) 1 monitor, Bigger than 24" higher than 2k, 120Hz or higher. (Monitors are NOT included in budget)
• Budget range? (Include tax considerations) £1000, no tax.
• WiFi or wired connection? WiFi 6 at the start, then maybe ethernet after a while
• Size/noise constraints? mATX, no noise constraints really
• Color/lighting preferences? RGB and Black (RGB is not necessary if it wont fit in budget
• I would like the Ryzen 5 9600X and the NVIDIA RTX 5070.
• I will only buy off reliable brands.
• SFX PSU (i think the ATX won't fit the case.)

My pc part picker list so far: here