I wouldn't either. My BP, Ella, sometimes goes on strike and it drives me nuts. It's very stressful for me to have her not eat for a month or more at a time. You mentioned you felt stressed when your sand boa won't eat. Do you really want another one to stress over?

Cinnys are not that hard to find. I know you want to find one locally, but if you're patient, you should be able to find another one. If this is going to be a future breeder, you do not want to sacrifice quality - and that includes feed responses imo...

These are just my thoughts. I know some people wouldn't think twice about taking the chance, and they are right that a problem feeder for one person may not be for someone else, but my honest opinion is that there are plenty of other nice cinnys out there who'll be solid feeders for you and therefore be a better choice for a breeding program.