I ended up picking one up for $85 myself. I'd be willing to take gut shots at some point, because I think this is a DIY well worth doing. This or the Boss PN-2. I feel like they're offering similar features.
The ultimate would be to be able to independantly set the pan and trem rates, so that when the panning is engaged, you can still have an audible trem going too. I imagine it'd be onerous to add an indepadant LFO circuit for each fucntion of the pedal, though.