The printer is wider than most doors, consider assembly location wisely.
That they tell you that is a good sign lol

Looks like a decent machine.
As far as budget wise goes, you could probably get something ready built for less.

As kits got - take a look at this: http://www.reprapmall.com/index.php?...product_id=180
400x400x500 - he3d use quality components and this has some cool features. Plus only $999

Probably the best kit on the market - but not such a large print area: https://shop.prusa3d.com/en/3d-print...aArtUEALw_wcB#

But you could get the he3d AND the prusa and still have $1500 left over.