Howdy Kuan,
I found a couple 2010's someone was selling a little over a year ago, both were runners. They both had some problems but fixable. I think one had rust but from what I have gathered it is fixable also if you are a good body man (or know someone). They are diesel, I don't think any were gas from the factory. The diesel has 32 horsepower. These were tractors. One thing I have picked up on is that the 2010 is becoming rare enough that if in original or restorable condition they are not used for much more than parades and shows. A better choice for a work or play Mini Mog would be a 411 or 421 because they aren't as rare. 1951 was the first year of production and the 2010 was the first Mog built by MB. Previous Mogs were built buy the company that developed them. That was Bouhringer who started production in 1948. If one of these things has the stylized "Bullhead" on the hood then it's as rare as hens teeth.
Well that is probably more than you wanted to know
Hope this helps.