I have three expensive hobbies - guitar, woodworking with hand tools and ham radio. What I have done is estimated a fair market priced everything I would want sold, figure out a depreciation/appreciation schedule and left the lists as a codicil. It all can be sold and shipped either on Craigs list, QRZ or eBay. You may want to consider providing your executor with such a list and offering 10 -20% of the final sale prices as a fee.
de Tom AK4NY