Well jonesy it is a hard one. As the heart wants what the heart wants. What you have to look at is what you are purchasing would only be 2a cooling-dress cowl and starter. As the other parts are easier to find,the rest of the mower is basically a model 2. The hardest part to find is indeed a correct engine as they were very limited. From 100,000 to 110,000 as blue said. The cowl and the starter however are still around quite often on eBay. However be careful as a few years ago their was a guy doing repos on both the starter and cowl. Their is a way to tell but you couldn't tell unless its in your hand and know what to look for. Not saying that one has then as I really don't know. Just don't go silly on your offer as they still are around. In fact I seen one on eBay about 12 months ago in Melbourne sold for $50 and was the same as that one didn't have the original engine. I mean if that had the original engine on it in that condition it could easily sell from $500 to $1000,but not the original engine really knocks the value down. An original 2a engine could sell for as much as $250. I have seen them sell for that. Not me though. So just don't be dishearten if you don't get it they are still out their as my grandmother said good things come to those who wait.