well whats your budget? there are a lot of company's that sell good 7mgte motors they are just on the high price of almost 3 grand and some of them will come with an ecu some with 5speed tranny or sometimes both just depends where you look but i got the one that is currently in my car from
http://www.jdmtigerjapanese.com/ but then again they are located in canada and there are some that are imported through different locations but it all depends on what you are looking for. Also dont forget that when you do the swap make sure you get the ecu for the 7mgte and the correct tranny but take a look at the link above and
www.jspecauto.com to see what you can find or if you'd like just hit up google and type in jdm engines or motors and see what you can find. Let us knw how your search goes