I wish I could sell some parts and get new ones, but I just buy and buy hahaha. I don't have a dedicated space either, unfortunately where I live is rented, so I don't have so much freedom. At least I free them from their packaging, play with them, take a picture of them and then they go to the trunk.
I like the documentation you present of the toys, I am a lover of them, I'm just from the 90's onwards.
I have and had toys from the 90s as well I will post as I come across them all in the files I have I have no order at the moment to how I post old and new stuff .
This is the problem when you collect stuff you need the room to do it if its for personal space rather than a trade space I have and had a lot of starwars toys over the years so have plenty of that to post from the 70s onwards .