Expensive Bike Worth

Hi everyone!

To make a long story short, my father passed away unexpectedly and he loved to ride his bikes. He had one specifically that he spent a lot of money on, and was just wondering if anyone could help me put a price tag on it.

Has a camera on the back of it (he was paranoid someone would hit him while riding) and a Garmin on the front of it.

Thanks in advance to anyone who helps!