What would you do in this scenario?

I just got a sweet deal on a pre-built from Canada Computers, it has a Ryzen 7 7700, Asus Tuf A620 mATX mobo, 4060, 32gb TeamGroup DDR5 6000, 600w Deepcool PSU, with 1tb NVME SSD for $800CAD (This model is still for sale at Canada Computers for $1549 regular price).

My personal rig has a Ryzen 5 5600x, 32gb ddr4 3200 on an Asus TUF X570-Plus wifi ATX mobo and I've been considering upgrading lately. I was thinking about going to Ryzen 9000 but I don't really need it. So I'm considering swapping the 7700 stuff into my main rig and selling the 5600x with the 4060 because I suspect I could still get about $100-200 profit even with the AM4 stuff in the rig that I sell.

My question for the collective is this. Would you make the swap or maximize profit on the flip? I'd probably list for $1200ish to flip with the 7700 in it.

Also to make it more complicated, my case is a Hyte Y60 but the A620 mobo is mATX so its kinda small in that chassis, might look a little silly, though it also has the vertical GPU mount for my 3090 so it would mostly be covered. Further complicating it is that the prebuilt came in a mATX case and my X570 board is full ATX so I'd need to use another case I have laying around. The only case I have right now is this right-side window Segotep case, link below.

https://segotep.ca/collections/computer-case/products/segotep-phoenix-k3

Do you think the right side window case lowers the resale value? It certainly makes it look unique.

Let me know your thoughts, very curious what others would do.