re: The top seeds in the CFP will rightfully complain about not getting a home game.

Give me 16 teams.

All conference champions get a home game in the first round except for the lowest ranked conference champion (assuming next year that the PAC 12/Mountain West merger happens so there’s only 9 total conferences). That way, your champs all get home games, and your at-larges have to travel. While I doubt the G5 teams would realistically have a chance, it would be great exposure for their schools to get playoff games on their campus.

Imagine:
Georgia hosts Liberty
Michigan hosts Ole Miss
Florida St hosts Penn St
Okie St hosts Oregon
Tulane hosts Texas
Toledo hosts Ohio St
UNLV hosts Washington
Troy hosts Alabama