Maybe experiment with the Engraving Options for Rehearsal Marks and Tempo? If I switch the options for Tempo to “position below” and Rehearsal Marks “to the right of clef and key sig” I get this which seems closer to your settings:
Perhaps play around with those settings to avoid all the manual editing. I have my rehearsal marks set to “Left-align with systemic barline” with a 4 space offset.
I’m OK with what you’re OK with. That doesn’t change the fact that traditional placement of a style or tempo marking is flush left with the time signature. All others come after.
Yes, to me it’s correct. Tempo marks flush left to the time signature. Rehearsal marks refer to a barline, in this case an imaginary barline at the start of the music.
It’s a bit unusual to see a rehearsal mark at the beginning of a piece. Maybe there is a good reason.