New guy - 68 Notch-back - 900 mile road trip!

And now some questions.....
The main issues to make this a driver are:

* The brakes have a MEAN vibration and a shimmy/wobble/pull...
* There is a howling sound from the rear end
* I think the tranny is shot - although it shifts, is SLAMS in 2nd and makes a gurgling sound...???
* Gonna need a front suspension rebuild...

OK, any ideas or opinions on that list?
Where are the best sources for parts for:
* Interior
* Suspension
* Trim pieces
* What transmission do I have behind my 318? (If I was to just buy a new one.
* How can I tell my rear end gear - at 50mph, I'm actually going 60mph so I think someone has messed with it...

The engine actually runs pretty good (for the time being!)

Missing rear window regulators.....gonna have to dig in there and see what the heck is going on...

I'm sure I'll have a TON more questions as I get to know her :D

But to sum up, to make her a driver (to start) I need to address:
* Brakes
* Steering/Suspension
* Transmission
* Rear end howl

Thanks in advance - :cheers: