my friend has several parts produced for MR2s by a company out in PA and he says its all for a great price, he just had an MR2 dash shell done for his car. I may go through him to see what prices i can get. As for those radiator shrouds, GM sells them for 387+shipping, so to sell them id look into having 20 made and able to sell for around 250max.
this is the mr2 dash