So I'm a Newb getting into the craft and am looking at buying my 1st printer. I am looking to buy this printer

Link: https://www.gearbest.com/3d-printers...51.html?wid=21

and was wondering what it would take to swap out one of the extruders with one that could print metal filament like aluminum fill. Such as what type of extruder, hot end, nozzle do I need... Is this printer even capable of it? Like the proper heat bed and such. I'm not wanting to buy a ready to go printer for thousands. I'm wanting to start with something cheap that I can upgrade and change however I need it over time so I can learn and fully appreciate the craft.

Any help would be great. And if this printer can't do it, or if there is a better option for around the same price, which one should I look at?

Thank you

Dustin