If you aren't completely overwhelmed with Locost build sites, you might want to have a quick look at this one.  It appears to be in two parts as the owner seems to have moved over to Blogger this year, but there's a good selection of photos on the original site.   The build goes back as far as November 2004 and it's going to be bike-powered so if you are considering this option, you might want to keep an eye on the site.