I know it's a bit of a cop out but at some time in the next 12 - 18 months I'll be moving house as this one is rented (somewhere bigger and preferably with a garage) so I don't want to make a shed/workshop that is too difficult to dismantle (with this one I just take the roof off and pull apart the lollypop sticks ) so I'm a bit loathed to start battening the interior, putting insulation on and then boarding out. However I do see the need to insulate and make damp proof as I'll have my RC stuff in there as well as my CNC router. The other thing is that if I start fixing battens to the walls then I'm stopping the walls from expanding and contracting which is what the manufacturer says you have to do (and who am I to argue!!) so in a bit of a quandary. I think I'll settle for thinner than optimal insulation and look at how I'm going to fix the battening (slotted fixings perhaps?) but all this is immaterial until I can finish the shed off which I'm hoping to do after work this week!!