Thank yall for the comments and advice! I had not even considered mults for spreading signals around so that's 100% something I will be adding in. I agree with wishbone and Jukeshoe that the scope doesn't add much to the case and truly is something that can be left out. I've already added a buffered and passive mult (to research more which one would best suit the modules I have picked out). And I'll for sure keep the 3x MIA or add another attenuator module if I can't find a 3x MIA easily to buy.