A GO KART? Lucky, that is fucking amazing. Why did you decide not to do it? I think you need to come here for a week or so with a welder, that engine, and a few 1.75's of Grey Goose, we will make a fucking go kart.
I would guess you could get probably $600 pretty quick with the tranny.
Oh, km's are less than miles, 150,000km's is equal to 93,205.6788356 miles.
EDIT:

I need to make a new thread.