that frame is called a rotisserie and I made one out of wood in Pakistan to rotate daihatsu G100 shells.
Wow , wood supporting the weight of a car.
Xulfikar sb. can you share some pics of the rotisserie if possible! just for our knowledge sake!
Lucky you are too have those original ac grills installed. I sold mine Lancer just because of these ac grills because I didn't found them and I hate alterations.