About Malpensa to Milan link, I'm afraid that Taxi or Limo service would be expensive. It will cost you more than a flight ticken in weekends ...

Anyway the train link Malpensa Express run until 22,15 than there is a bus service until 1,30am. You can find the train table at http://www.ferrovienord.it/webmxp/index.html

There is an other bus service from Malpensa to the city, named Malpensa shuttle, that run until 0,15am every 30 min. Have a look to http://www.malpensashuttle.it/

I'd prefer take pubblic transports rather taxi (Malpensa is far away from the city). Then take a taxi in the city to get to the hotel.

Cova, take into account that July is a hot and damp month in Milan.

Ciao, Marco in Milan