Reaper, you have a very nice reloading area and set up. While I am a big fan of electronic scales, they do have their quirks and limitations. I also have an excellent balance beam scale that I rely on for cross checking (originally purchased as my main scale.)
The major downside of battery operated electronic ones is that they are set to turn off after being on for a short period of time (real short time) to save the battery life. This is a constant annoyance and does not promote it's use for large quantity reloading. I very seldom if ever use my battery operated one anymore. It is great for testing weights of individual bullets and cases, if left sitting there with no weight on it, it will turn off.
To help me with my rifle reloading, I went with a RCBS ChargeMaster 1500 with both the scale and powder dispenser on it. It is a far from cheap unit at about $300.00 but an outstanding scale and powder measure and consistently gives perfect results. The downside to this type of scale is that you need to let it warm up for 30 min or more to stabilize the sensor in the scale before using as well as calibrating it each time it is used. (not a big problem)
Do you need an electronic scale, NO. If your powder measure is accurate and gives consistent charges each time, you only need to set your measure to the correct charge with 4 or 5 measurements on the scale to insure it is dropping the correct amount of powder each time and go from there.
If however, you are a pain in the butt, and the charge must be exactly the same each and every time with not even a 0.00 variance between charges (that's me) than one of these types of electronic scales is a must. RCBS, PACT, and Lyman make the best one's out there.
Unless you combine both the powder measure and scale as a combination, your Dillon scale will be your best bet for the type of reloading you are doing.
Have fun, stay safe and shoot straight.
Jim