Thank you for your help. Any thoughts on separation anxiety ? Because now I am certain this will be a big issue. I have not left her yet .. other than 10 minutes and she went crazy in her crate. Almost pulled the door off and salivating big time. So the crate in not an option right now clearly :-(
Personally I think it's way too soon to be trying to leave her in a crate. You need to have her feel safe and secure with you and in your house and garden first. A week will hardly do that and it wil probably take up to at least a month for that to happen (it did with our rescue girl).
When she's confident enough to move around your home and know she's safe, and perhaps have the crate always nearby wherever her "safe place" is (which may change from time to time), perhaps then you can try her in the closed crate, but with you present.
Until she feels safe and secure, she will always need an escape route from anything that frightens her, and they will be many, from new sounds to new people. So trying to confine her to a crate now at such an early time isn't going to work. Imagine having lived in a confined hell prior to being rescued and then being re-caged again..... a crate too soon must be a trigger for her. At the very least, the crate door must be left unlocked initially so she can get out if she panics. Of course, this is no help if you wish to go out; but in the initial training period I think it would be a must.
Luckily for us, we're retired and can do what is needed for our pups whenever it's needed. If you have to leave her to go to work, then this is going to be very difficult. Could you perhaps take some vacation time to settle her?
Also, are your other dogs crate trained? Are you trying to crate train the rescue and not crating the others at the same time? Are all the crates together - which might help if your rescue can observe the others - but I think it unlikely. I believe crating can only work if the pup will use it willingly.
I know you must think you've bitten off more than you can chew; but believe me it can work. You just have to be consistent, have a strict routine, make sure she knows only good things come from you and be prepared for relapses in your progress with her. Understand she may never be a "normal" Golden Retriever. Our Amber has come a long way in 18 months; but she's not typical. She knows not, how to play, never fetches toys as gifts, and only tolerates the softest of cuddles. It is only recently she has chosen to sit by us and not in her safe place, and she still needs work on her recall.
However, there's nothing more rewarding than seeing progress no matter how tiny and knowing she's happy and safe and loved and becoming the pup she was meant to be.