You should use the hitec Hs-55 servos you need 4 and use whatever receiver you want we use the electron and then motor. It came with one right ? I dont know how much $ you want to spend but the Himax-2015-4100 and the 25 amp castle creation with 6.6 to 1 gear ratio on our foamies dad has the Ultimate from horizon he just got it lastweek and it flys great on this set up...
oh yeah the motors about $75 speed controller the same we use the 3 cell Li poly packs go to maxxprod.com they have all of this or go to fancyfoam.com he sells the stuff to.
hope this helps