A big part of me really hopes this doesn't happen.
The Salary cap is going to be just over 60 mil next season, and Kevin Love is guaranteed to get a max contract. That means you'll be investing at least 1/4 of your salary cap into a guy who (IMHO) has way too many question marks on his resume.
As mentioned in the OP, Love is a major defensive liability who has shown zero leadership skills, has been an inefficient scorer his entire career, and has never won anything significant at the NBA level. Also although he is still young, his attributes as a player (lack of size, lack of athleticism, etc) mean he has pretty limited upside and will probably never get much better than he is right now.
Some people say that we are better off having "A" star rather than "No" star. I'm not so sure that's true. What if acquiring this star does not make your team any better, but significantly worsens your salary cap situation (hence making it harder or you to make a play at a REAL star later down the track)? In this case, signing a big contract guy like Love could prove to be the move that cripples your franchise for the next 5 seasons, leaving you in a half decade of mediocrity.
To be honest, I'd make a move for a 'good' big man with less star power (Josh Smith, Greg Monroe, Marcin Gortat) because one of those guys could be had on a much more reasonable contact, yet could arguably add just as many wins to the team. Then I'd use some of that cap flexiblity saved to work at bringing a REAL star over via next year's star studded free agency.
Otherwise I would try to get Love in a deal for Rondo so that we can bring in Love without sacrificing our future (picks, young talent, etc) and it wouldn't cripple your salary as much because you'd just be trading one future max contract player for another.
I honestly believe that if we have Rondo and Kevin Love on max contracts 2 seasons from now, we are going to be a stinker of a team.