Perfect thought!! Out of sight, out of mind!!!
When you aren't sewing, the evidence doesn't disturb the rest of the family life and you can just leave it as is, til you return.
When you are there, maybe everyone will forget about you and give you lots of peace and quiet to piece away!! :)
Just be sure to insulate well, and install a/c and good heating or you'll be hot as H E doublle hockey sticks in the summer and the opposite in the winter! :)
And bonus ..... you can have all the sewing machines for your nieces sitting in a row, waiting each of their sewing visits!