I agree with Wild./ 130 isn't enough for that job. I would charge about 2for the labor portion. This job is not the same as sticking in a thermal fuse in a dryer.
As for her being your neighbor's mon, you have to ask yourself where do you draw the line? People have to realize that this is not a hobby, it's how you make a living. Me, personally, I have 3 real close friends I give good deals to or do it free except for expensive parts, brothers and my kids. My Mom and Dad have been gone for a long time, so that's it. I fixed my daughters AC, I paid for parts. Didn't charge them anything. My neighbor across street, fixed stove. REGULAR PRICE> Next door neighbor fixed Washer, REGULAR PRICE> Brother's Oven needed a bake element. Put it in FREE, didn't even charge him for part. >
Low, you have to get over feeling guilty for charging an acquaintance your regular rate. Once you lay out in your mind who are special exemptions, draw the line and stick to it. That would be my advice. Good luck.