A very high quality Inside the Waist Band holster. Next and equally important is a very high quality double layer Gun Belt. Milt Sparks VMII in a leather holster or a CTAC kydex holster are good starting places, The Beltman makes a good starting place to find a belt. Put about $225 aside for your carry gear, it ain't cheap but you saved a few bucks on a Ruger vs. a HK. You'll likely have to modify your dress somewhat, although many IWB holsters have "clips" that make them tuckable. Blousing a one size to large shirt or maybe buying tall sized will help as well. Even if you print through shirt it isn't likely that anyone will be looking at you anyway, questioned let them know it is a" Medical Device " and don't discuss it any further. You'll still want a good holster and belt, but a smaller handgun is something you may consider.