Well, you could use some of the stuff, and donate the rest to a rescue or shelter.
When our Starr died, my husband took the first toy we got her (a blue teddy) and put it in his truck. Some of her outfits I put on one of those memory boards (it's fabric with ribbons crisscrossed on it to hold stuff) and some of her toys are being enjoyed by Luna and Izzy. Her bed I threw away, as I couldn't stand to look at it and remember her suffering in it before we rushed her to the ER vet, she died on the way there
My heart truly goes out to you, as I know all too well how you're feeling
It's good that you are getting a new furface to love, it really will help your heart to heal.