Modernahab
1134
Congratulation on your 5098R!
My favorite Patek Philippe, bar none.
In your shoes, I'd favor the Calatrave, both for the micro-rotor automatic caliber and because it exemplifies different facet of Patek Philippe as compare to the Gondolo. Further, I see the 5098R as the Gondolo to end all Gondolos, and feel that it reperesents a better casing of the shaped manual movement than the 5124. I also concur with EinPA, that if your looking for a rectangular(ish) watch there are some very compelling alternatives out there, not from Patek Philippe. For the same money or less, I might be looking at the ALS Cabaret or one of the complicated JLC Reversos.
Reverso Chronographe Retrograde
Reverso Duoface Night & Day, White Gold
Happy hunting, whatever you eventually settle on!