[thenewkid64]

If you wanted to you could look into using sheet abs and making your own, but you would need to lean a new skill or buy a bunch of tools to heat and form the abs. The sheets can be bought in 4X8 sizes and in various thicknesses. I want to say a 4X8 sheet at 1/4 inch thick is less than $50.00. It can be cut on a table saw but I have not yet learned all I want to know about how to heat and bend or form it. I know it can be vacum formed and there are machines you can buy for small projects but I think wheelwells would qualify as a big project.