Their name is the Mondoshawan. That movie is one of my favorites as well! Yes I believe so, I just googled 5th element aliens to get a picture of them and that was one of the first ones that came up.
Yes it is, and I'm glad I don't have any projects like that to work on. But if I did have the skills or knew somebody that did there is an old 'Historic' house (harbison house) around my area that is for sale and for real cheap. It's supposedly over 4000 ft^2 and 2 stories but the outside looks in bad shape, it's over 100 yrs old and is all done in red brick. The asking price isn't bad I suppose @ $109k but my guess is that it would probably cost that much just to have someone restore it properly, maybe even more.
Here is the listing if you wanna check it out.
https://www.trulia.com/p/tx/collinsville/107-e-stone-st-collinsville-tx-76233--2109553412