Does anyone have a contact name I could hire for a private tour guide from Dubrovnik to Mostar

When we were in Dubrovnik, we hired a private driver to drive us around the Bay of Kotor. I assume the agency he works with does trips to Mostar as well. First I contacted Julija Antunovic who received excellent reviews on Trip Advisor. She was not available the day we wanted to go to the Bay of Kotor, but she recommended her colleague, Stjepan, who was excellent. The name of her company is Dubrovnik Driving Guide.
https://www.dubrovnikdrivingguide.com/

Thank you KarenWoo! I recall reading about Stephan on one of your reports, but darned if I could find it again. Will see what they can offer me

If you want to re-read my report, you can click on my name to search for it. We were in Croatia in September 2019.

I tried copying and pasting the link here but am having difficulty for some reason.

Thank you KarenWoo I do want to revisit your trip report!!