SETLOCAL ... ALIAS ... pipes

It's not important. For years the text utils (grep, ...) from the ancient Thompson ToolKit have been in my PATH. They're simple and pretty easy to use and I'm quite accustomed to them. But I also have the (Gnu) UNXUTILS collection of tools which are significantly more powerful. I needed the Gnu utils in a project so I made some aliases to keep coding down. For example, these
alias gsort `(2>nul g:\gnu\sort.exe %$)`
alias gcut `g:\gnu\cut.exe %$`
alias guniq `g:\gnu\uniq.exe %$`
alias ggrep `g:\gnu\grep.exe %$`
made the likes of this
gcut -f 3 all.log | gsort -n | guniq -c | gsort -r | head /n %count
easier to code (and easier to read).
I was surprised when it didn't work inside SETLOCAL.

So, a question. If I (finally) move to a 64-bit OS, will things like the above still work with those 32-bit utilities?