E-mail to Echo

I am still attempting to get a hold of the blue prints for the hand bicycle I test drove at Echo.
The following is an e-mail I sent to the person in charged of appropriate technologies at Echo.
Hello!
My name is Maria Renno. I am an FGCU student, who had the pleasure of visiting Echo during a school field trip. During our visit I as able to test drive a hand tricycle/wheelchair made out of wood. I am an environmental engineering student and was very impressed with this technology. The reason I am writing is because I was told I would be able to find the blue prints for this device posted on Echo's website. I was not able to do so. I returned to Echo for a second time in hopes of finding the blue prints at your bookstore and was, instead, referred to you by one of your associates.
I am currently preparing my colloquium final project. My project is an engineering mechanics lesson plan. The idea is to replace the objects they currently build as a part of this class' curricula for the hand bicycle I test drove at echo. At the end of the class the device would be auctioned and the funds collected would be donated to your establishment.
I appreicate your assistance with this matter.

regards,
Maria Irianni Renno