I bought another set of trailing arms and modified those some pics in my rides..
Depending on wheel size, Im running running 15x8's 40 offset with Advan A048s 225/50/15 which side wall extanded approx 7mm past the rim. Its pretty much a matter of c sectioning out the front and adding a bit more steel and gussetting on the rear. The biggest thing that I needed to do on the rear was to adjust the lower control arm back in near all the way to tuck the tyre back under, then add an adjustable upper camber arm.