I happen to be a former honda boy, oh wait, I still am.... (still own a 97 Civic rice rocket). If the pan is stripped, you should replace the pan.
To repair it properly, you would have to use time-serts, which you have to drill into the pan, tap and thread an insert in there. That will take quite some time and money.
Not having to see the car, and having experience with engine drops and oil pan changing, you have to remove the downpipe, remove the bell housing dust shield, remove 20 nuts off the oil pan. You should be able to get an oil pan from the local junk yards (Honda Heaven??? near capital expressway I think) or from some of the local ricers. Shouldn't have to pay more than $60 for a used pan and I think the gasket is less than $20, which you can probably get from your FLAPS. It's about a 2 hour job.
Helicoils suck! Use
Time Serts!!!! It fixed my go kart motor after I smoked the threads on it.