That was his cost not anymore since he was reluctant to use it I offered to buy the material. I only did this as it's obvious that the cost of his labour would be eaten into and I wanted it doing properly.Why is the slave paying for your hard core?
We have made many last min changes and added extra work and he never added any cost so it was only fair.
Anyway picked up used Upvc door with frame and glass with key for £25. That will fit nicely on side. Just need window now for it.