Just arrived back yesterday, whilst out theur we tried the walk directly across from the gate to the complex as an alternative during the day.
Straight out of the gate, straight across and through the yard opposite. Once in the yard turn right and 2oo yards on the left their is a reasonable DIY shop for all those bitty things you need including paint!!
You may need a hi-viz at times though as this is an operational yard with Fork Lift Trucks!!