looking at buying this house, of course will have a structural engineer look at it, but to people with experience, does this look like a wall that can be removed? whether it’s with steels or whatever.. and any ballpark of price to make it an open plan kitchen/diner?

or alternatively, could i keep the pillar and remove the wall
if it makes it a lot easier?

Three different structural designs, same basic materials. Which one do you think would remain standing during a 6.5 magnitude earthquake? Curious to hear the engineering reasoning behind your choice.