Good choices! Now what Willie says is true. Since your will to do the water changes you could get his 2” discus. My first group I did this way. I bought 2” but grew them to about 3” in a 45 qt tank. 6 than added them to 6 similar sized store bought discus. Grew that group of 12 up in a 125 planted tank. All went well but water changes were big and daily till 4-5”. So a lot of water. Bought a second group of 8 again at the 2” size and grew this group to around 4” in the 45. This took about 3 months and much less water than the 125. Than they moved into a 75 for a few months while i qt’d 4 Kenny’s discus in the 45. Both groups added to a 125 just before Christmas. Changing water every other day now.
Just an idea of what I did and am doing . They take time. I have most of what you’re planning to get and yes the only possible pigeons would be those red so ask Hans when buying. Good luck and waiting on pice of the new arrivals.