You might be able to make your own cable. If the ME-1 can take power from the hotshoe then you could take any hotshoe-based accessory or extension cable and splice it to an appropriate DC plug for your mic.
Of course, you'll need to do some legwork first. Like determining which D7000 pins carry the voltage, what the voltage is (including polarity) and how much current is available. Measured voltage and pinout are likely to be Googled up from some DIY site. The available current capability is likely not floating around the web unless it is published by Nikon and it cannot simply be measured without risk to your D7k. However, my guess is that anything designed to be powered by LR44 batteries takes very little current or they'd go flat way too fast. The mic current may be spec'd or you can at least measure that. Probably sub-milli-amp. I'd risk such a light load. In any case, good design practice would imply Nikon have provided some sort of over-current protection.
But realise that is an assumption, not a given. So you do it at your own risk.