If Kloop goes to Real Madrid, it would be much easier for him to succeed there compared to when he was at Dortmund and Liverpool, regardless of whether he'll be given much time or not, there would be enough funds to build the team to his taste in about 2 transfer windows that's the summer and winter windows instead of waiting for many seasons. That aside, Real Madrid already has lots of quality in their depth, they just need a very good manager that would put them in order and get them performaning at their best again, Ancelotti have been good with this particular squad in the past but it seems he's currently lacking ideas of how to put them in order. According to your question Klopp might not likely take the offer but if given an offer he can't reject then he'll jump on it, who wouldn't want to coach Real Madrid especially when it comes with a very good offer.