Hmmm. May I suggest a quick trip back to the drawing board? I mean, here you make an awesome CNC'd aluminium frame, with exact compound bevelling and curves, and then you hide it all under some fairly uninspiring brushed aluminium panels. With prone dome head screws. No, that is lazy. And in the pursuit of modding art, gentlemen, laziness will not do. Don't mount the panels on the frame; mount them flush with it. Cut the pattern so it reveals the beautiful CNC'd radiator shroud instead of hiding it. And at least use some countersunk or counterbored screws! You've come this close to creating a work of art. Don't mess it up now! DISCLAIMER: all this is entirely my own personal opinion and should not be regarded in any way as fact or gospel. YMMV. Take it or leave it, etc.