generally most nitros can be converted over to electric, but in some cases they might mill an entirely different chassis which can be cost prohibitive, I'm not sure which parts are universal with Mugen but I would take a look at their user manuals online and cross reference some part numbers to be certain. Integy has some conversion kits that might make it more affordable too, I would ask on RCTech Mugen thread to see if the MBX6 motor mount is compatible with the MBX7 (i.e. MGT7) :
Brushless Conversion Kits for 1/8 RC Buggies & Truggies for R/C or RC - Team Integy