For anyone interested! (chocolatey package)

[Journeyover]

Thank you. Here is the parameter which indicates target installation directory:
--cb-install-path=xxxx

Thanks :p by chance are there any other parameters that are passable that I don't know about?

Currently the ones I know of are - 
the silent install '--cb-auto-update'
the install path '--cb-install-path=xxxx'
and the uninstall (delete UserData folder) '--cb-silent-uninstall-type=x'

if there are any others I'll gladly add them into the mix, and I should have at least the above in the package by at least tomorrow.