This post was first submitted last month. Have you made progress with the use of the second map or by using a different source? There is a FAQ for maps here FAQ: Maps that may be of assistance. You also may wish to check out using Mapbox as a solution.
Best to you
Thanks - Ill take a look. To be honest Im now going to stick to mapping just countries for now - but thanks for your help
Here's a technique I posted about switching shapefiles on the fly Data + Science
If you have any enquiries I'll be sure to get back to you as my BOD team is bound to be interested in what you are up to