It's same in Chicago here...high of 37*c in the shade! That's 97*f I think.
I saw that last picture and thought that driver's side mount looks a little high on the back end?
Martin, any way to find out how much vacuum those new OEM pumps are pulling? Otherwise, Summit sells vacuum pumps that many hot rodders use - I've looked at them when I was setting up ITBs, but it turned out that I had just enough vacuum on the brakes...it wasn't bad at all. So I think you don't need too much vacuum.