I really like your use of prepositional phrases.
I think that the Henry group can fulfill all of what is needed. And most of what is wanted.
It's not too likely that you'll see a completely new stadium anytime soon. Dropping another
$300.-$400. mil. on a new stadium would not seem to be a prudent move. Rather, a gradual upgrade and expansion would be in order. I'm not qualified to make an assessment of the Anfield facility, but from what I have seen, the four separate structures would seem to lend themselves to upgrade with relative ease.
One Talksox member, ORS, is an engineer / project manager for a rather large construction firm that does things like building stadiums. It would be nice to hear what he has to say.