From the rumours making the rounds, Real Madrid is read to include Camavinga plus a multi million euro payments for the services of the PSG maestro in midfield Vitinha. Real Madrid looks forward to strengthen their squad especially as Modric is on his last legs for the club. It's understood that Modric has agreed personal terms with AC Milan and iwill no longer be a Madrid player after the club world cup. PSG is a big financial team and wouldn't let the heart of their midfield go for any amount.
I doubt PSG will be willing to give out their midfield maestro to their European rivals. If they must strengthen they will have to sort that firepower somewhere else. Like you said PSG is a big financial club and won’t want to lose their best midfielder to their competition Real Madrid.
Real Madrid have a lot of money. They may want to buy vitinha. But let's not forget that Vitinha will have to come from psg . PSG is a club that does not skimp on spending money to strengthen its squad. We have seen this in the past few years.
If Luis Enrique thinks that Vitinha is needed for his squad, then the PSG management will not let Vitinha go. No matter how much Real Madrid offers. If Vitinha is not interested in staying with PSG, then things may be different. But after winning the Champions League this season, Vitinha will probably not want to leave Luis Enrique's squad.