GDemu and USB Gdrom question about games

I was thinking to sell the UGC dreamcast that I modded with the picopsu, I haven't used it since. Like many other projects my interest peaks in the building phase and flats out afterwards... worse on platforms that don't interest me much... (like the DC, I thought the UGC will spark my interest but that was not the case after all...)

Most probably is that I will make a thread in the following days to get a price , I wanna get rid of other DC stuff like my modded vga box - preferably all together in one deal.