I'm going to be pretty stretched with the budget - so I want to make sure in not getting in over my head.
Is it a good idea to get into a home with a stretched budget?
Can you afford the house with a few thousand left in the bank? If not I'd be surprised if you even get a mortgage.
What's a good idea of the cost to get the necessary items fixed?
Absolutely NO WAY to tell from here. Not even a clue. All we have to go on is a few blurry pics of some panels and boxes. We have no idea where these circuits go, how long, what path, etc. A wild guess would not even be close to accurate.
Did you not get a home inspection?
What inspection do you need to get rid of the AL wiring for?
As the others have said, AL wiring larger than #10 is NOT a problem. Anyone that tells you it is is either trying to sell you something with scare tactics, or does not know what they are talking about.
I'm sorry, but it needs saying. If you are coming to an internet message board in a panic, with a 4 hour time frame, asking these questions, where the answers will be the basis for buying a home (!!!), you are NOT getting off on such a good foot.