Scenery Expansion of Air Force Base

I am currently a student pilot at USAF UPT at Laughlin AFB. I have been a long time FS user, but never tried designing scenery.
For those unfamiliar with military patterns, they are very different in some ways than the Civilian types we are all familiar with. As such, I need some really specifc ground references. The built in scenery is really not that bad for some of our ground reference stuff, but I want to add a couple of water towers, maybe a road or two, and a pond. Any suggestions on a good program for the first time usere, or does anyone have the Laughlin AFB area scenery already, I can't find it on Simviation. Additionally, I was wondering if anyone has a really good T-6A Texan II for install. Payware or freeware.
For those unfamiliar with military patterns, they are very different in some ways than the Civilian types we are all familiar with. As such, I need some really specifc ground references. The built in scenery is really not that bad for some of our ground reference stuff, but I want to add a couple of water towers, maybe a road or two, and a pond. Any suggestions on a good program for the first time usere, or does anyone have the Laughlin AFB area scenery already, I can't find it on Simviation. Additionally, I was wondering if anyone has a really good T-6A Texan II for install. Payware or freeware.