Some tips to get to MP.
 

Hi, here I leave some tips for your trip:
-First of all, the best thing is visit MP during the dry season (April-October).
- Keep in mind the flight is about 45minutes (Lima-Cusco), is neccesary that you are well before the flight so as not to have any inconvenience.
-Acclimatize to the climate during one day.
-Go to the train station (ollantaytambo/poroy) from Cusco, it's about 20minutes/1h.45 minutes, in a car is the best way to go, but if you need save money for the rest you can go in a bus.
-The train will leave us in Aguas Calientes (4hours), there are different travel classes (tourist, first class and luxurious). I recommend you the tourist class because also it's confortable and we don't need luxurious things for a trip of 4hours. Then from there you take a bus direct to Machu Picchu.
-When you book in advance try to obtain the ticket: Machu Picchu and Wayna Picchu, beacuse if you want to buy later the WP ticket is possible that is not available.
Sources:
Lonely Planet - Peru
Machu Picchu - Wikipedia
Cusco - Inka Trail
Inca Trail 2018
Any questions I'm available to your help.