i couldnt find it online. its in the book under covers but for a stack of chairs. however it wil do as its exactley like the one i saw with the holes to peg it down with they are £5.99
Before getting my 'Outhouse' (I my Outhouse) I used a large size bbq cover, complete with eyelets, and it covered the whole camp kitchen and stove down to the floor, so I could peg it down overnight. Never tried it in very strong wind, its possible the whole lot might have blown over if the wind had got under it, but it worked well in rain and light wind, just a small faff getting it on/off again.
Alison