Here I am going to offer my Ev's and Lvl Up Prices!
Prices go for levels, let's say you want a pokemon from 20 to 30, you can go check the table and say oh it is 100f for each level and multiply by the levels you want, until you reach the range of 30, if you want for example 20->40 it would be: The price from 20 to 30(100 * 10 = 1k) + 30 to 40(200*10 = 2k) = 2K+1K = 3K
People returning have 5% discount and guildies have 10%
5k for 510
Here I leave you the table.