I am a visual person and immediately needed something visual to keep the ideas coming. Here is the best map I found. It’s a good starting point. My next choice is whether to use areas like Europe Engulfed or hexes like East Front.
I am skilled with Photoshop as photography is my other hobby. After trying both areas and hexes I decided on hexes. They were easier to make by taking the photo and using a hex pattern overlay. The end result will be rough but usable. I want a large map so I plan to cut the map in half at 20 x 30 (the largest poster size for my local Costco). With the 2 halves assembled, I will have a 40 x 30 map.