Call the dude, and ask if you can inspect it, seeing as its only 60 miles from home
If he's selling the engine only, its probably sitting on the floor, and would only take 20 minutes to inspect....
Take some wrenches and feeler gauges, pull the valve cover and check the valve clearances... if they are closed down and at zero, and there is less than 3/8" exposed on the adjuster threads, buy it... the valves may be open and thus the low compression, also, most of the bikes with tulipped valves, never made it to 35k miles, so that is another thing to ask, if it has 60 k on it, the valves wrent tulipped.