Why even start it as an auction breh? That's risking someone backing out if they find a better deal.
Just let it run with a buy it now and set the "offers" as the lowest you are willing to consider...auto declining the rest. Once you communicate with a buyer don't accept the offer, instead just tell them you are setting it to the price they offered and it will force them to pay immediately to secure it. I would remove the international shipping as well.
I've dealt with eBay too long
How much can I get for this monitor and GPU?
Help me with the buy it now prices.