Very nice start. I like your choice of RR's too You sound a lot like me- after a lifetime of HO trains, this is, my first O gauge layout as well.
I used automotive pinstripe tape to lay my track plan on my control panel. Easy to apply and change if you change your track at all.
This was my original control panel- I've changed a few things but I don't have a more current photo. I run all conventional so the small toggles are track power for the sidings or blocks. Momentary buttons for un-couplers.
Looking forward to watching your progress.