Hi Gordon,
It is good to see you keeping busy and using the track building as a distraction at what is a horrible time, no matter how much we prepare ourselves it takes time to come to terms with it.
On a different note, the cost of PCB sleepers and the preparation time, would it be worthwhile to look at the product from DCC Concepts? https://www.dccconcepts.com/product/pre-etched-sleepers-1-0mm-4mm-scale-b9-to-a5-points/
I understand that the sleepers are available in two thicknesses 1.0 & 1.6mm, they also come with tie bars.
I don't know if they are any good, I'm an armchair modeller, who so far has only modelled in his imagination but this does give me an opportunity to ask a question. You mention cutting the cork strip, when you cut the cork will it then bend to the shape of the track route or do you have to cut it to shape of the route?
best regards