Anyone can do this. It helps to know something about woodworking and woodworking tools, then one team member needs to have a digital camera and know something about taking good pictures and proper lighting. Another team member needs to have good reasonably good writing skills and/or use a computer to record information and picture numbers, then a few to pull out and look over each tool. Some refreshments, folding tables, chairs, power for the computer, maybe lunch, a nice day, etc. is all that is needed. In most cases there won't be enough space inside the workshop, so planning to do this outside next to the shop is the usual requirement. If there is space inside the shop for the team and the work, so much the better. How long it will take will vary considerably, but after all of the tools have been listed and photos taken, the rest is research to find out the latest selling/asking prices of similar tools and a group judgement of the condition of the tools, which does not need to be done at the tool location. Once this has been completed, the list of tools and pictures along with these prices is provided to the tool owner/family member.
Charley