There are 32" 4k monitors (IPS, 60Hz, 4ms response) for $600 or less from LG already.
Can you please provide a link? They are not showing up on the LG website or Amazon. If anyone else knows of a 32" 4k monitor for 500 USD or less, share a link. For me 32" is smallest size I can get away with 100% scaling at 4k.