Edit: I don’t get your math. If we’re using a very generous definition of “top end,” even neglecting Nvidia and going AMD - which some would argue makes it not top end - you’re talking conservatively: $600 for a GPU, $500 for 32gb of ram, and $500 for a CPU. $1600 before PSU, case, SSD, fan(s), mobo…there’s no world in which you’re coming in under $2k. The SSD and board will put you over immediately.
You’re talking 3/2025 prices, not 3/2026. A compromise, mid-range computer is $1500 to build now.