Well, I'm looking for a workshop where the mechanics know what oil to use and what parts they have to change. It's a standard service, after all - Honda has detailed internal guidelines for exactly what needs to be done for each service.
I've owned a KTM Duke 790, and there shouldn't be any debate about what oil to use. KTM partners with Motorex, and any authorized KTM dealer uses Motorex oil (in Europe that is). I'm surprised KTM dealers in Thailand use a different oil. I guess future services will be even more challenging for you, now that KTM is leaving the Thailand market.