I was thinking that it seemed a lot of cash, plus whatever it costs to get it here. You could buy a KE175 or something like a DT175 or XL185 here for less.
I don't know much about the KE125 but I think it'd take a fair bit of time and money to turn it into a classic motocrosser.
I paid $300 or thereabouts for my DT125, granted its not as tidy as this KE...
Personally I wouldn't bother. Just my 2c worth.
Definitely want to see more pint sized trailies to keep my DT125 company at vinduros!
Tex