Neil,since you ask...

About 10 or so years ago when I became a snowbird I faced those issues. I have my own place down south so I chose to maintain two tying areas. Without going into specifics I will mention how I handled the materials issue.
Some I just purchased duplicates but for most I split and took half with me. At first I would forget what I had where so I began labeling each with the name of my location...if it had a name on it it meant I had a duplicate at the other place.
Re: feather pelts and some furs, etc. ...though I can see where one wouldn't want to...I split them in half.