It would be $700 the link literally tells you that. And you could do it for much cheaper by just lower the gas cost. They used 900 gwei, you can get a transaction through most days for 90 gwei. Right now you could do it for 165 gwei.
This is a bit above my paygrade but I think this type of transaction doesn't depend on any state, so you can expect it to succeed even if it gets mined a few days after you submit it?
If so you could just set the gas price to 50 gwei and wait.