Hi guy. The P.O. Of #181 wasn't very mechanically inclined, and he did it himself so I wouldn't think the headers have to be removed. #181s headers have never been tampered with.
Now, the H...that may be a different story. Still not that big of a deal.
If you're trying to preserve originality, the starter is nothing special. If you're a cheapskate like me and prefer to rebuild the original because it's cheaper, then I applaud your instincts.
3205SN at advance auto for a brand new one, guaranteed to fit, buy online and use the TRT30 coupon code for 30% off and pick it up within 30 minutes, and boom you're done.
