just picked up these 2 yesterday they were sitting in a shed since 1984. the 650 was 100% there I have the carbs soaking that's why they are not in the pictures. the 400 doesn't have a rear-wheel which made getting it out of the shed take an hour. Besides the rear wheel, the headlight is missing but everything else is there. I plan to turn one into a scrambler/ tracker. then part out the other. Which would you guys keep and why? I have done a couple of eBay searches and it looks like getting parts for the 650 is going to be difficult. but it already has 2 wheels. I know either way I have a lot of wrenching to do.