Anyone have any for sale or know a site that sells the same size ones? (silver coloured preferred)
You mean these? For the top panel.
BTW: U will need a 2.5mm sized hex/Allen wrench for this. Since its a different size(top) than the default ones that comes with the stock TE. Stock ones requires a 3mm wrench.
They also have other colors as well. Just search “screws” on the site.