Wow... You guys are just full of great ideas. I particularly like your hub motor, Trikin'. I considered putting a dynamo hub on there to run my lights. I guess there is more interest in putting racks on BOB trailers than I was aware of. I thought perhaps I was over-doing it just a tad... My rack, which is a standard rear rack for a 26" wheel mountain bike, sits what appears to be about two inches higher than the top of a Greenspeed rack for a BOB trailer, based on some photos I found on gregw's website. (He's also a very inventive fellow full of great ideas...) Plus since I already had it I didn't have to buy one. I used it on my last trip as a front rack. It was a bit large for that purpose but it worked. Now with a pair of orange Ortlieb Front-Rollers on it it's a rear rack once again...
Thanks, guys!