Well, there are locations online where you can go to get advice/ideas on building velomobiles, if that is the sort of thing you are looking for. I got a booklet from these folks:
(Basically, they are interested in putting a body onto their vehicles for purposes of streamlining, but learning how to build a body would be a good start, I would guess.)
"Nothing is withheld from us which we have conceived to do.
Do things that have never been done."