i ordered a TXV.. i have a plan to turn it into a EEV but we will see how it goes when it gets here..
im thinking this plate heat exchanger. its probably way over size but i can see this 1 ton system doubling in size eventually.
https://www.dudadiesel.com/choose_item.php?id=HX2340
or there is a coax on ebay
https://www.ebay.com/itm/PACKLESS-IN...8AAOSwVGFZuXix
https://www.ebay.com/itm/PACKLESS-IN...cAAOSw9sJZuaj2