How Much Work is this: Converter

I don't understand your question. Whether teeth are broke or not has no affect on "how you repair it." If they are broken, theys iz'

...........or you mean "getting by for now" and later you break more? Well think about this........MAYBE the next time that jams up it will break the bellhousing. With an automatic, that's a pretty extensive repair.
My point was that by not replacing either the converter or the ring gear he could get stranded someplace or like you say, bust up the bell housing. Too many times in the past I had customers complain about the cost of replacing the ring gear or converter and continued "getting by for now" because they were either too cheap to fix the problem, or got some bad advice from someone. In the end it often cost them more than what they would have paid either for a replacement converter or getting the ring gear changed.
The cost of a stock 727 converter is relativity inexpensive. If it was me, I'd check with my local Transtar warehouse to see what it would cost for a replacement converter and go from there. Under no circumstances would I continue to drive a car with ring gear issues.