Size max and budget for Mexico and Guatemala

Yes - I have Maps Pro but it does not have anywhere near the functionality of S&T as far as I can tell. I plan multi-waypoint routes with stops such as campgrounds and fuel stops and S&T calculates the entire route and computes mileage etc. I can save any and all routes. I can custom tailor any route. And a whole lot more. Download .csv and .gpx etc. There is just so much more to S&T that nothing else seems to have. The only drawback at this point is we cannot update since MS discontinue. Maps Pro does not even come remotely close to being a replacement as far as I can tell. They basically do what lots of others are doing which is to use OSM and pretty much leave it at that. OSM as great for where the roads are but adding waypoints and customizing routes and then saving etc. is something I cannot seem to figure out. I don't think it can be done the way we can do it with S&T. Maybe someone else has found a way into the way to use these new programs but I can't. I have tried several of them and get nowhere. The Maps Pro Tutorial provides very little beyond how to download - which I did some time ago. I also have several other OFFLINE map programs which are fine seeing where new roads are but not much more than that. Lots of programs allow putting in a point and then another point and saying lets go but anyone with much experience with GPS knows that does not work very well. We need to be able to design our own route to override what the computer comes up with. I have many routes which require multiple waypoints to get the route set up to go the best way. I find the human brain can still plan a route better than a computer can. I can also do it with Garmin but I prefer being able to work on a computer screen where much more can be seen - old eyes require large screens.