Hi Woolfy, that really is reasonable. We pay £60 at the min, fab place but we are moving in to our first rented place come this weekend and are on a knife edge as to whether we can afford the camper, let alone the storage but for £100/15-20 per month it would really really help. We are a deffinate if the farmer agrees to it. Thanks alot! 
Jon&Cara-Gramarye Fontaine
Jon&Cara-Gramarye Fontaine