which motor for my 8ight t

Well I got a losi 8ight t I plan on doing the rc monster mount with a losi battery tray.
Question is which motor should I run. I really like the medusa research motors. Or I can take. My 2200kv motor out of my buggy and buy something else for that also what size medusa should I go with.

Thanks for your input I will be running this off a mmm esc. On 4s and 5s batterys.