Umm, Carl? The exchange rate with Japan is something like 108 yen to the dollar, so the $335 000 figure above is about right. I hate to ask what you've been smoking...
Hmmmmm..... Gut it, install a 96" S&S V-twin for more power (+$5500), add custom flame paintjob (+$1000), Invest in microphone + voice software to create custom catchprases for robot in ED-209 voice (Get out of my way/ Your car is a piece of crap/ No, I do NOT want to Biggie-size that et cetera)
Then get some of those vintage machine-guns from The Sportsman Guide (wth non-functional recievers for your safety) to replace the Nerf guns....
Oh yeah. I could get a second mortage for one of those.
1.5 kph? If it's gonna be that slow, why even bother making it move at all? For that money, you could buy two or three full-size X-Wing fighters, and nobody will expect them to fly or fire torpedoes.