Looking for pricing advice on my dad’s telescope collection I inherited

Hi everyone!

My dad passed away a few years ago and I’m finally now getting around to selling a good chunk of his equipment. I’m hoping to get advice on pricing them. I’m not super familiar with astronomy/the equipment and Google lens can only help so much. I know the big white telescope was his newest and he only used it a couple of times, less than 5 for sure. As for the rest, I’m not sure how long he had them before he passed(which was 2022, if the age of the equipment makes a difference in the value).

Any advice is much appreciated!