If you're planning on building a replica then you need to do some serious groundwork. I build grills,radiators,windscreens & chassis's for various replica's and as reproductions for original vehicles.Until you have done some planning building a grill shell is not going to get you very far.If you want to make the grill shell start with some good dimensions and drawings/photo's and make a wooden buck, then pattern off the buck for your metal parts, tack it,weld it, & dress it up. I presume it will be steel and chrome plated. Hope this helps.