The following assumes you will use kdiff3 for file diffing and although not essential it is a good idea.
C:\> choco install kdiff3
Git can be installed first so you can state any parameters you wish. Here all the Unix tools are also installed and 'NoAutoCrlf' means checkout as is, commit as is.
C:\> choco install git -params '"/GitAndUnixToolsOnPath /NoAutoCrlf"'
This is all you really need to be able to install git-tfs via chocolatey.
C:\> choco install git-tfs