Elenora,
I'm not sure what time zone you play in, but if you are around over the next few hours I have a store lot that I'm not really using.
I would be happy to make you a temp roomie so you can set your stuff for sale on some of your other sims and then log in with your other sims to buy them back. You can set the house to no admit so that nobody swoops in and buys anything while you are changing sims.
Feel free to private message me if you'd like to.
Polly