No and no. By the way, Welcome.
Welcome to reloading and thanks for asking our advice.
For case trimming, in your situation, I would measure my brass (you have a gauge for that?) and those that need trimming, I would set aside until you have a case trimmer. (Simple solution, ignore the problem.) Just deal with the brass that is the proper size.
I prefer the balance beam scale. Electronic scales (depending on the quality of the shielding) are affected by floursecent lights that are too close. Scary.
While some people swear by their electronic scales, and undoubtedly, some are excellent and dead reliable, I can diagnose malfunctions with my balance beam scale with a strong light and magnifying light. My skills and tools with electronics are not up to the task.
What model balance beam scale do you have?
For that matter, if you post a complete equipment list, I am sure you will get a lot of advice on parts you lack and parts that are excess. Just be sure to give more weight to those who can tell you the reasoning behind their opinions. Remember, verify for yourself everything you learn from casual sources. Believe only half of what you see and one quarter of what you hear. That goes double for everything you find on the internet.
Good luck.
Lost Sheep