User blog comment:Battlemaster Grunt/What is the best Mass Effect? 1,2, or 3?/@comment-5271559-20121001033032/@comment-24174486-20121001182837

"How did TIM get access to such a large amount of Reaper tech"

Presumably from all of the places where you encounter Reaper tech throughout ME2. The Collector Base, for example—we know that Cerberus gathered resources from the cleared-out base or its wreckage.

The problem with the "plot holes" that you claim is that they aren't plot holes. A plot hole is when something happens that is impossible within the confines of the story. Not receiving an explicit answer to a question does not make it a plot hole.