Well it was a question with a simple answer …. As a lot of my shed is built upon WordPress – and as far as I can see WordPress needs FTP to update and add plugins etc… I needed FTP …
This was a really good guide to getting VS-FTP set up

https://www.digitalocean.com/community/articles/how-to-set-up-vsftpd-on-ubuntu-12-04

I didn’t follow it to the letter – my user is allowed out of its home directory. It would make adding files to WordPress a tad difficult … I didn’t get theĀ “refusing to run with writeable root inside chroot” error so I didn’t have to do the work-arround