To be honest you need a committee !! a site manager would be top of the list, get the 'office' sorted out and if you have empty plots make that a top job to get them filled but stress to the new people you are looking for people to help run the site and upgrade it !!!!
Have a word with contract gardeners or the council and see if you can get wood chips, grass clippings, and even soot is great ! a few strong pallets put together will make you some containers to put it in.
With the intrest in lotties running so high you should have no trouble getting new plot holders, make sure the council is passing on the details of people who want plots unless you are self managed, even so a web site would boost your site.
Once the site starts to look better people will be much more interested and start to have pride in their site
