eBay with Newegg has the Acer Predator Orion 3000 13th Gen Core i7 16GB DDR5 1TB RTX 4070 Gaming Desktop (PO3-650-UR17) for $1200 with free shipping. Newegg has it for the same price. Includes mouse and keyboard.

• Intel Core i7-13700F processor, 16GB DDR5 RAM, 1TB SSD
• 500W 80+ Gold PSU, RTX 4070 12GB GDDR6 Graphics, Win 11 Home