where to find turbo motors????

hey im new to the forum and i just bought a 91 Mustang LX (hatchback) and i also own an 89 LX (hatchback) which is toast, anyway the 91 i just picked up has no rust and the motor clicks and when it idles (rarely on its own) it goes up and down tryin to keep it self running til it eventaully stalls. when its warm, you have to hold it over 2000rpm and if you go below that, it drops fast and stalls. and i would really like to know where i can find turbo motors because i would like to run a turbo. BTW this car was only $600 cdn so i couldn't resist. any ideas would help alot, thanx in advance Dan here is a pic of the beast

im from winnipeg manitoba, i dont know how far from NY thats is but im really lookin for just a motor that i can get shipped to me. websites that have motors forsale would be great though. thank you.