What a shame, you've just missed the chance to bid for one! http://heritageaction.wordpress.com/2010/09/10/bid-for-your-own-bespoke-geophysical-survey/
Weve talked about this before. I don't think the hardware is beyond the reach of a community group but there's one bizarre possibility - even though it's a non-intrusive technique it may be considered to be in breach of bylaws/planning regs or other rules. You'd need to check.
I believe a Metal Detecting Holiday company that caters for North Americans to come over here is in possession of one - you could ask them how they get on with it (I'm not giving their name as I disapprove of them!)