I think I've settled on the dragon bone castle by bree for my conversion.
But I've been told I have to release my 3rd and 4th levels of stone pavers and walls before I can do it ....
also any goza mats & carpet
grass, sand or snow tiles
(they can be inside other containers)
also note: if you have mannequins
if you do not move them to another house
they will be thrown into the moving crate
(if using EC, they are together inside the same crate
with the mannequin next to each one)
but this will put your house beyond your storage capacity
if you have lot of them.
some deeded items, like raised gardens
will have to be axed before conversion
================
after you convert,
make sure to take out your jewelry box first
(they count as item count, when not locked down)