Ok first of all where did you get 390k? Is that a rumor of a wage he demands? His salary is 15M pounds yearly, which is around 17.5M euros yearly (gross or net, I don't know, can't be bothered to analyze ManU wage structure.
@IlCapitano says gross so I guess). You think he doesn't deserve it but what does it matter? The tax law was introduced exactly for this, to make players like Pogba on high salaries affordable. If we gave him equal gross wages to Dybalas, you'd say he earns more than Dybala and it's undeserved, but it doesn't matter for the club because they both cost the same. So your overreacting is way overblown.
There is no fee, he is a free agent, his yearly amortization would be much much less than Arthur for example. Financially he won't be a problem for the club like Ronaldo was, or even like Higuain was, not even close.
Ok atleast you say he's worth a try at half of 390k, which I can get behind actually and I think it's slightly less than what we will offer him imo (if they even go for him)
Bottom line is he's got the physical tools to play the game well into his 30s. He's got WC ability on the ball, he's still in his prime and is out of contract. We have a coach that would know how to use him and if we can get him it would be a brilliant signing. Let's see though, I think it's between Paris, Madrid and staying at ManU and we get Tchouameni or someone like that