Not a bad find. Even though it's been sitting for 10 years it's still in the upper 90-percentile of barn-finds since it looks to be stored-inside. It'll still need the usual hydraulics-tires-rubber bits TLC, but it's compete and unmolested. Be sure to check the air cleaner assy for mouse visitors, but you'll need to work down to the carbs anyway to find and correct the throttle hangup.
Nice find, indeed.
'73 R60/5 Toaster