just go to accessory shop, try any of the PU ones there and modify to fit. That is all.the simpler the design, the easier to modift to fit. Give it to a good paint shop, or panel beater to install. It would look good.
As for who driving Proton Saga LMST, the dashboard build up quality is equally low, few years you will notice a lot "mouse" noise from dashboard. From what I observed the serious noise are from center console. So...