I love Materialize! I basically stopped about 90% of my texture downloading after I first discovered it. I still can't believe it's free. It's an incredible little program. Also after a short break from my map making, I came to it with a fresh head and somehow ran into a solution to my problem. So, as of now I am fully able to work on my map, and It feels great to finally have all the tools I need. Now all I have to do is roads. So many roads...lol. Currently working on adding a custom HDRI as a cube map. It's amazing what a short break can do for you when you run into walls!
My advice is to smooth the roads using Photoshop or GIMP. It's so much quicker than by hand. There is a bit of a trick to it though. It also means you need a map of where your roads are going before you have laid them.
