To be honest, lot of downloads look great but are crap built. I remember a room reducing 30% of kB by removing duplicates, others are just lazy copy and paste things that could be slim built.
My favourite rooms are mostly downloads i optimized or arranged for me. But 10 or 20 hours i have to spend.
Think just about you want to do or changes poses. i often miss wall poses where it would be fun to have.
I always say, i did not build it myself, just make it my home by editing it.
And technically, how should it work to host a protected room, tell the server the password when sharing?