[XR7-4.6]

the side skirts and rear could be razzi, that's close to their style, but it might actually be a home made job using a kit modified from another car. Aftermarket kits don't have vertical seam lines like that one has on the rear or the fenders

 

[XR7-4.6]

Front end is Wings West

Side skirts are Duraflex, possibly sold under another name ( not Razzi those have more lines and are flatter )

Rear end looks like it was for a different car and sectioned to fit ( vertical seam on the rear is a giveaway that it was not made for this car )

I thought duraflex was the one that had arches?

You're right though, I was misremembering the details on Razzi, these seem to match(from the old homepage gallery)