We don't know a lot of details about Inspiration4's mission yet, so a lot of guesswork & I'll be updating as we get that info next week. Jared Isaacman indicated an interest in launching in the pre-dawn hours for spectacle, so I've put the launch time at ~10:30 UTC. B1062 is confirmed, and so is Resilience. Guess is an initial ~200x575 kilometer orbit, raised to 575x575km.
Don't really know what the initial azimuth will be before a dogleg is performed after stage separation. Also, I assume the parking orbit apogee would be around 300 km given the final orbit will be at 570 km.
I saw on Gunter's Space Page's "Orbital Launches of 2021" that the website's author guessed 40 Starlink sats per polar mission. This adds up to a total mass of 10.4 tons compared to 15.6 tons (60 Starlink sats).