all prices were rounded up a bit.

60$ rolling 2 shelf cart from harbour freight

230$ delta 3d printer from eBay kossel variant.

45$ linear actuator from eBay

3$ double Relay control board from eBay

50$ lumber or just the scraps you have around.

35$ regular 2d printer from Walmart.

0$ old PC to run gcode sender.

Total cost 438$ including all shipping charges.

That's a pretty good deal if you want a 3d printer that can continuously run. :-)