Ghost mod

This is slightly off-topic and I apologize but I’m too new to be able to start a new post yet I desperately need some help, I have successfully made a ghost but now I can’t figure out how to place him in a non-residential lot such as a museum, I’ve tried making the museum into a residential lot but then of course you can’t change the lot type once you own it, I’ve tried the retail work around and bought that lot as a retail and then selling it and changing it to a museum but it still shows that he’s living in a vacant lot. I don’t want my ghost to live at the vacant lot I want him to live at the museum, has anyone else dealt with this problem before? I’d like to place him at the museum permanently while still having it be a museum lot type like the von haunt estate, any help would be welcome