I live twixt KX and Debden, and there are a few camping or halfords stores twixt KX and Debden Camp:
There is a Cotswolds in Islington: 116-118 Islington High St, London N1 8EG will google it. Which is less than ten minutes from KX, otherwise there is a big Halfords at Tottenham Hale Retail Park which will do the trick for camping gear and gas: Tottenham Hale Retail Park, Broad Ln, Tottenham N15 4QD. There is also another Halfords on the North Circular (A406) about 15 minutes ride from the Tottenham one if that doesn't work - an easy ride up the canal. Finally there is also a Army Surplus shop in the Walthamstow High St which sells a range of things - it's called Eastmans. Good if you want to go duck shooting I think, but will have gas and camping bits and pieces.
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