Kits are mainly being made to order, currently on about 21 days from placement of order.
As mentioned. The post box at the end of the road is of limited size. Which meant I couldn't post my Underground kits.
Good news. I have worked out how to do it.
No pretty retail packaging! The kits will be sent in a strong card box with extra padding to stop too much sliding.
I am unable to keep stocks of these kits, so they will be produced to order, within 21 days (currently).