major misinformation here.
Swapping the trans is a little more than a clutch and flywheel job. Should take two about a weekend to do. You have to drill and holesaw/punch out a total of three holes....this is labelled as the hardest part of the whole job by some.
Cost can be as low as $200 to at the really high end $1500 with aftermarkter flywheel, clutch, shifter, and some misc....
It's probably not the job to do though if you must have your car at all costs.