Hi there, piecing together the final parts so I can start DD-ing my Z31! I'm noticing some rust, no surprise here in Ohio. I know these are unibody cars and people have gone as far as entirely new undersides on these, but I haven't seen my rust in particular. I have partially rusted out rocker panels. Is this difficult to patch/replace with basic metalworking? I also have rusted trunk corners but I know that's relatively easy. Thanks!