Manual gearboxes can be bought for rather cheap depending on the engine, and the swap operation itself can be done with ease(?)
Nevertheless,if you want another car, there are some manuals for even less than that (though most likely has been crashed,thankfully Japan isn't so strict about airbags). I mean, I found manual 350Z Z33 and Silvia S14s for less than V$5k. The only problem would be their location, as most are a bit far away from Tokyo.
And of course, welcome to the RP world Buzz, hope you have fun here!
