You could always build an rig(non modified) in that sma8 and sell it locally. Market it as fortnite ready. Kids seem to pay a lot for fortnite rigs and they even have watercooled 2080ti for it. Dont ask me why.
The marketplace here is pretty slow unless you have good stuff that you price pretty cheap. I have much better luck on reddit these days. Way more eyes. If you price it ok over there it will usually go pretty quick.