I'm not sure about factory , but the mag cover and exhaust sure looks like they could be .
Very nicely done .
The mag cover seems to have a beaded lower edge , which makes for a clean finished look .
The seat looks to have a cinch type cover , probably homemade or possibly aftermarket .
I noticed the front brake was left instead of right . That may be due to the influence of MC single brakes being mounted on the left , mostly .
I didn't find any other pics of that bike .
Pete .