Toolset 1.01 installed for me without issue, but... not the first, second, or third time I tried.
The problem was that I was too impatient. There's that point when a command prompt window opens and the cursor just seems to sit there blinking and nothing's happening. I always presumed that it was "stuck", and would exit out just to close that window. Turns out, No. Just wait, and after establishing/finding all the pieces it's supposed to, that window closes on its own.
When I finally decided to go get a cuppa while that was going on, the installation went through!