I use vim-plugin to handle my plugins. You just need to clone this repository, add symlinks and run :PlugInstall. No need to install extra plugin managers.
git clone https://github.com/aleks/vim-dotfiles.git vim-dotfiles
ln -s vim-dotfiles/vimrc .vimrc
ln -s vim-dotfiles/vim .vim
Start vim, run :PlugInstall. done!
If you want to overwrite certain settings in .vimrc but want to be able to pull from this repository in the future, add a file called vimrc_local inside the cloned respository folder (vim-dotfiles).