Let me add a little what is said above...
I recommend you to pick the airplane and domicile you can have a good life in.
There will be NO quick upgrades, this happened last time around too, i would not be surprised to see 5+ years to upgrade.
Most of the FO's at the company today will always be senior to you and they have been held back on upgrade and all that needs to catch up before any new upgrades come in.