Yea, exactly. I'm wanting as much info as possible to pass on to the grandma. Her skills are impressive but she always wants definite measurements/outlines (I guess from making clothes for so long).

Plus any opinions from users regarding changes (if any) they'd like to have to theirs so I can consider integrating them into the drawing/layout for my own.

EDIT: It's one of those things where it looks simple but, for example, the actual layout of their exterior hardware is probably pretty important to get right or else you might end up having to redo some things. Not to say that's not out of the question, but no reason not to go the 'tried and true' route if I can. None of the website pics (or any others I have seen on the site, yet anyway) show a clear/flat-ish view of the exterior, let alone the interior.