The 105 is essentially the same as the 102. Good, reliable light engines with lots of power. Parts are not a problem, just call Keith.

Baffles are the key to power and longevity. If it has little compression it was run hot. That's the mistake so many have made with a BME twin. No baffles equals poor cooling. Baffles are easy to do, all you have to do is think "funnel". Think of the engine as the small end of the funnel, with the opening in front of the engine as the large end. It's only the concept of directing the air through the engine, then out, and not over or around it that matters. Anything that does that works. Then again, that should be done with any twin or fully enclosed single. So many kill their engines through a lack of understanding.

If the price and compression was right I'd buy it in a minute. Headers and cans are stuff I'd worry about later. The only hard part about a can is the header and flange, and those can be made at any machine shop.