Still no.
If you can afford a $300 ebay item that likely will cost more than that at the end of the day, you can afford ATA. Also, keep in mind that this is not a cheap hobby. If you can't afford it now it's better to wait and save up than to buy on impulse. And the costs doesn't stop at getting armour, you also need blaster, boots, tools, glue, undersuit, etc...