Hallo Teresa,
deeply sorry for your loss.
"There are no goodbyes for us. Wherever you are, you will always be in my heart." - Mahatma Gandhi
It is very hard in such a time to think about of "what to do with all these stuff"
You have the possibility to offer these things, models, kits, tool and books in our "Buy and Sell"-area. Definitely you should make some photos of the things and / or make some listings especialy of the books, which you want to sell.
Due to the fact, that we are an international forum, it will be sometimes hard to sell these overseas etc. due to the postage costs.
But there could be some interest......and we can help you to utilize.....
Welcome to our group of friends - and friends are helping