This is a great suggestion. Not only do they need lots of juice, but there's also the flavor issue, and it would help if you could sample them with several different amps. This would help you to decide, a) whether you think they're worth keeping at all, and if so, at what cost? The cost factor for K-1000 amplification can vary by a country mile, and what makes one person happy might not do it for someone else.
Of course, even if you could get to a meet, it will be far too loud to make any sense of even open headphones, let alone the K-1000. So I guess that might not be such a good idea afterall...